Please read this operating manual carefully first for proper use.
Page 2
Thank you for purchasing the PENTAX Auto-flash AF540FGZ.
In addition to easy daylight sync photography with TTL auto, the AF540FGZ also allows wireless TTL auto (P-TTL
auto) photography and high-speed sync. It is a clip-on type flash which enables accurate focus adjustments even in
dark locations with built-in AF-assist spotbeam.
PENTAX is a trademark of HOYA CORPORATION.
Page 3
FOR THE SAFE USE OF YOUR FLASH UNIT
Although we have carefully designed this flash unit for safe operation, please be sure to follow precautions given on
page 2.
WARNING
This symbol indicates that violating this item could cause serious personal injuries.
CAUTION
This symbol indicates that violating this item could cause minor or medium personal injuries, or material losses.
is a symbol indicating items that are prohibited.
is a symbol emphasizing a warning.
1
Page 4
WARNING
The flash contains electronic circuits that
operate at high voltages. Do not attempt to
disassemble the flash unit yourself, as there is
danger of an electric shock.
If internal parts of the flash unit becomes
exposed due to impact, etc., do not touch them
as there is danger of an electric shock.
Do not expose the flash unit to water or
moisture as there is danger of an electric
shock.
2
CAUTION
Do not use the flash near anyone’s eyes, as it
may hurt them. Be particularly careful with the
flash around infants.
The following may lead to an explosion or fire.
● Shorting the batteries
● Exposing the batteries to flames
● Dismantling the batteries
● Remove the sticker covering the battery.
● Attempting to recharge non-rechargeable
batteries
Remove the batteries from the camera
immediately if they become hot or begin to
smoke. Be careful not to burn yourself during
removal.
Page 5
Precautions for Your Flash Unit
● Never use organic solvents such as paint thinner, alcohol or benzene to clean the flash unit.
● Avoid leaving the flash unit for extended period in places where the humidity and temperature are very high
such as in a car.
● Be careful not to subject the flash unit to strong vibrations, shock or pressure. Use a cushion to protect the flash
unit when carrying it in a motorcycle, car, boat, etc.
● Do not use the flash unit where it may be directly exposed to rain, water, etc.
● Replace all the batteries at the same time. Do not mix battery brands, type or an old battery with a new one. It
may cause explosion or overheating.
● When using the flash unit off the camera, do not try to attach any metallic object to the electric contacts or to
mount incompatible accessories. Otherwise, the TTL auto mechanism may be damaged or rendered
inoperable.
● Periodic checks are recommended every 1 to 2 years in order to maintain high performance. If the unit has not
been used for an extended period of time, or is being readied for an important shoot, it is recommended that
you take a test flash with the test button and test shoot with it. Test flash is also important to maintain optimum
performance.
● Avoid contact with garbage, dirt, sand, dust, water, toxic gases, salt, etc. When the flash unit is subjected to rain
or moisture, wipe it off with a dry soft.
● When photographing black subjects or white subjects, use exposure compensation.
● Do not attach any accessories having either fewer or different (layout other than PENTAX standard) electrical
contacts for the hot shoe or grip. Otherwise, some functions may not work properly.
● We will not be held responsible for any accidents or damage, etc. caused due to the use of this product with
cameras and accessories made by the other companies.
3
Page 6
■ Cautions Regarding Batteries
● This flash unit uses four AA alkaline, lithium, or nickel metal hydride batteries. Do not use any other type of
battery. The flash unit may not be able to operate correctly or demonstrate sufficient performance, or the flash
unit itself may generate heat, depending on the type of batteries used.
● AA alkaline and lithium batteries themselves are not rechargeable. Also, do not dismantle the batteries. Trying
to recharge or dismantle these batteries may cause an explosion or leakage.
● When changing batteries, do not mix batteries of different manufacture, type and capacity.
● Do not insert the batteries with the positive (+) and negative (-) terminals the wrong way around. Incorrect
insertion may lead to an explosion or fire.
● Battery performance may temporarily be hindered in low temperatures. Batteries should be kept warm in
temperatures below freezing for proper performance.
● If you do not intend to use the flash unit for an extended period of time, remove the batteries. Leaving the
batteries in may cause damage to the flash unit due to leakage etc.
4
Page 7
Contents
FOR THE SAFE USE OF YOUR FLASH
UNIT ................................................................. 1
Precautions for Your Flash Unit ....................... 3
> Bounce lock release button
S Battery chamber cover
Y Shoe lock pin
G Flash signal contacts
T Shoe foot
V Locking lever
Page 9
@
V
>
S
Y
G
T
7
Page 10
[ 5P Sync socket
=
W External power source socket
K Socket cover
Q Slave sensor
R Wide-angle panel
" Catchlight panel
= Flash head
C AF spotbeam emitter
U Auto flash sensor
R
"
[
W
C
K
U
Q
8
Page 11
■ Major bundled items
Stan d
Opening of
the stand
Slide the hot shoe bracket into the opening of the
stand.
● You cannot attach the off-camera shoe adapter F
to the bundled stand.
● When attaching the flash unit to the stand, do not
tighten the locking lever too far. Tightening too
far may cause the locking lever to not lock
sufficiently when the flash unit is removed from
the stand and attached to the hot shoe of the
camera.
Case
Operating manual (this manual)
Certification
When in poorly lit locations and the LCD panel cannot
be seen, pressing the LCD panel illumination button
(LIGHT) will illuminate the panel for about 10 seconds.
Pressing it again will turn off the illumination.
● The camera's LCD panel lights up also when you
press the LCD illumination button (LIGHT) and
the exposure metering timer is on for the
following camera.
MZ-S
Auto Check Display
If the correct flash output is obtained, the flash mode
indicator and () in the viewfinder will begin blinking.
If the auto check display does not blink, the flash output
is insufficient. Verify the effective flash range (refer to
page 80) and adjust the distance to the subject, or open
the aperture further.
Even if the auto check display is blinking, the flash
output may be incorrect if the subject is too close.
● Depending on the combination of flash mode
and camera, the auto check display may not
display correctly
11
Page 14
Inserting the Batteries
Slide the battery chamber cover as shown in the
12
figure to open.
12
Insert four AA batteries, making sure the plus/
minus markings (+, -) match the diagram
inside the battery chamber cover.
Page 15
Types of Batteries
This flash unit uses four AA batteries of the same type,
as shown below.
- Alkaline battery (LR6)
- Lithium battery (FR6)
- Nickel-Metal Hydride battery (Ni-MH)
(Nickel manganese (Ni-Mn) and nickel cadmium (NiCd) batteries cannot be used.)
● For information about recycling times and total
number of flashes, refer to “Specifications” on
page 88.
● If the indicators on the LCD panel or the ready
lamp does not light up, the batteries may be
exhausted or not inserted correctly. Verify the
orientation of the batteries or, if the indicators
and ready lamp still do not light up, replace them
with new batteries.
● If you let the flash unit discharge successively
using lithium batteries, the batteries will
overheat, activating a safety circuit that
temporarily disables the flash unit. If this occurs,
rest the flash unit so that the temperature of the
batteries returns to normal.
■Using the Optional External Power
Source
Use the optional TR Power Pack-3 (sold separately) as
an external power source.
● For information on how to use the TR Power
Pack-3 and connect to the flash unit, refer to the
manual provided with the TR Power Pack-3.
● For information on how to recharge the
flash unit using the TR Power Pack-3, refer to
“Charging the AF540FGZ with the Optional
External Power Source” on page 16.
● The TR Power Pack-2 cannot be used with the
AF540FGZ for mechanical reasons.
The external power source uses six C-size alkaline
batteries (LR14).
(Nickel cadmium (Ni-Cd) batteries cannot be used in the
TR Power Pack-3.)
13
Page 16
Mounting to Camera
1
Remove the hot shoe cover from the camera.
1
Attach the flash unit to the camera.
2
Turn the locking lever of the flash unit in the
direction opposite to that indicated by (FIX➝)
(clockwise from the direction of the LCD
panel).
Slide the hot shoe foot of the flash unit into the
camera's hot shoe from the back of the
camera forward.
Turn the locking lever of the flash unit in the
direction indicated by (FIX➝) to lock it.
14
2
●
The following cameras have a shoe lock pin. When
attaching the flash unit, turn the locking lever in
the (FIX➝) direction and lock the flash unit to the
camera with the shoe lock pin. When releasing the
flash unit, be sure to do so after turning the
locking lever in the direction opposite to that
indicated by (FIX➝) and loosening the shoe lock
pin. Otherwise, the hot shoe will be damaged.
K20D, K10D, K200D, K110D, K100D Super, K100D,
*ist D series, *ist, MZ-S, MZ-L/ZX-L/MZ-6, MZ-60/ZX-60
● The 672 does not come with a hot shoe. The
optional hot shoe grip 672 should be used.
Page 17
Turning the Power On
Ready lamp
Sliding the power switch to the (ON) position will turn
on the power. The ready lamp will light up when the
flash is charged. Sliding it to the (OFF) position will turn
off the power.
If charging time takes more than 20 seconds, the
batteries have been exhausted and should be replaced
with new batteries. If the flash unit is used with
exhausted batteries, the settings may return to their
default configuration.
● Turn the camera on before turning the flash unit
on.
● The WIRELESS position of the power switch is
used for wireless mode and slave flash. For
details, see the explanations for each function.
➝
Wireless mode (page 38 - 49)
➝
Slave flash (page 50 - 51)
15
Page 18
■ Charging the AF540FGZ with the
Optional External Power Source
Prepare the external power source TR Power
1
Pack-3 in accordance with the instruction in the
operating manual.
Confirm that the power switch of the flash unit
2
and TR Power Pack-3 is turned to OFF. Then,
plug the power cord into the external power
socket on the flash unit.
Turn the power switch of the external power
3
source and the power switch of the flash unit to
ON. When charging is complete the ready lamp
of the flash unit will light up.
When using the external power source, do not
remove the batteries from the AF 540 FGZ:
otherwise, the flash unit will not function.
●
The TR Power Pack-3 is equipped with a pilot
lamp which lights up to indicate that the power is
activated. Note that a lit lamp does not indicate
that the flash unit is ready for use. Make sure the
ready lamp on the flash unit is lit before
discharging the flash unit.
16
●
When turning off the flash unit, make sure you
turn the power switch of the external power
source to OFF. Otherwise the external power
source may be exhausted.
■Switching the Charging Mode
You can select a charging mode from among the
following.
PP1: Charge the flash unit using only the external
power source.
PP2: Charge the flash unit using the external power
source and internal batteries. (Enables high
speed charging with a charging interval of
approximately 2 seconds.)
Slide the setting switch up.
1
Press the LCD panel illumination button (LIGHT)
2
for 2 seconds or more.
SL 1 or SL 2 will be displayed.
Press the flash mode button (MODE) twice.
3
PP1 or PP2 will be displayed.
Press the select button (S) the number of times
4
required to select PP 1 or PP 2.
Press the LCD panel illumination button (LIGHT).
5
The LCD panel returns to the normal display.
Page 19
■ Auto Power Off Function
When the flash unit is left unused for about 3 minutes
with the power switch set to the (ON) position, it
automatically switches off to save the power.
Slide the setting switch up.
1
Press the LCD panel illumination button (LIGHT)
2
for 2 seconds or more.
SL 1 or SL 2 will be displayed.
Press the flash mode button (MODE).
3
Press the select button (S) the number of times
4
required to select PH 1 or PH 2.
PH1: Enables the auto power off function.
PH2: Disables the auto power off function.
Press the LCD panel illumination button (LIGHT).
5
● The Auto Power Off function can be utilized both
when only internal batteries are used and when
an external power source is used.
● In the auto flash mode (A), the power will shut off
after about 6 minutes.
● In the wireless mode, the power will turn off after
about 1 hour of non-operation.
■Quick Power On Function
If the flash unit is mounted on autofocus cameras,
press the shutter release button half way to turn on the
power.
● The Quick Power On function can be utilized
both when only internal batteries are used and
when an external power source is used.
17
Page 20
Select Button (S)/Adjustment Dial Functions
4 types of settings are available as shown on the following pages for the select button (S) and the adjustment dial.
■ Procedure
Press the select button (S) so that the number to
1
adjust is blinking.
18
Turn the adjustment dial and adjust the blinking
2
number.
Page 21
After adjustment, press the select button (S) and
3
stop the blinking. Adjust the other items below
using the same procedure.
● When using multiple flash units set to P-TTL or
TTL Auto and adjusting the amount of light at the
same time, use the camera’s exposure
compensation.
Connected Flash ModeAdjustment Range
Flash output compensationP-TTL Auto flash-3.0 to +1.0 levels (EV) (0.5 step increments)
ISO / F (aperture) settingAuto flash (A)ISO 25 to ISO 1600, F2 to F22 (with ISO100)
Wireless (W) master flash (M)
Wireless (W) slave flash (S)
1/1, 2/3, 1/2, 1/3
19
Page 22
Camera Format and Flash Coverage Angle
The AF540FGZ’s flash coverage angle can be adjusted
to match the angle of view of the lens being used,
which enables effective distribution of the flash light.
The flash coverage angle is indicated by the focal
lengths of available lenses in the LCD panel of the flash
unit, according to the preset image size (FORMAT) of
the camera.
20
■Format setting
1
Firstly, set the FORMAT to match the image size
of the camera you are using.
The format size will automatically be set when
the shutter release button is pressed halfway
down when the AF540FGZ is used in
combination with the following cameras.
K20D, K200D, K100D Super, K10D, K110D,
K100D, *ist DL2, *ist DS2, *ist DL, *ist DS,
*ist D, *ist, MZ-L, MZ-S
For other cameras, before use, set the FORMAT
to match the image size of the camera according
to the following procedure.
Slide the setting switch down (yellow dot).
Press the FORMAT button repeatedly to
display camera formats (image sizes) in the
LCD panel.
You can switch from 35mm ➝ 645 ➝ 67 ➝
DIGITAL ➝ 35mm in that order.
Page 23
■ Zoom position (Flash coverage
2
angle) setting
Next, set the zoom (flash coverage angle) to
match the focal length of the lens you are using.
■ Auto Zoom (A.Zoom)
If both the camera and lens are autofocus, you can
automatically set the flash coverage angle according to
the focal length of the lens by pressing the shutter
release button of the camera halfway down.
The auto zoom function operates while the
exposure metering timer is operating (while
information is being displayed in the viewfinder).
I
f you are setting the format manually, return the
setting switch to the upper (white dot) position.
When (M.Zoom) is displayed on the LCD
panel, press the zoom button (ZOOM)
repeatedly until (A.Zoom) is displayed.
● When the flash mode is set to auto flash, the
auto zoom function does not operate even if the
camera and lens are both autofocus. Set the
zoom manually to match the lens angle of view.
■ Manual Zoom (M.Zoom)
If one or both of the camera and lens are manual
focus, you must set the flash coverage angle
manually.
If you are setting the format manually, return the
setting switch to the upper (white dot) position.
Press the zoom button (ZOOM) until the focal
length of the lens being used is displayed on
the LCD panel or if it can not be displayed
exactly one wider than the lens focal length.
The zoom position is switched in the order
shown in the diagram on page 23.
21
Page 24
● In the manual zoom mode, refer to the LCD panel
and set it so the flash coverage angle matches
the lens focal length or set a flash coverage
angle that is shorter than the lens focal length.
Zoom Positions for Each Format
* With the wide-angle panel
35mm camera645 camera67 cameraDigital camera
20mm*35mm*55mm*13mm*
24mm45mm60mm16mm
28mm55mm70mm19mm
35mm70mm90mm24mm
50mm100mm120mm34mm
70mm135mm180mm48mm
85mm150mm190mm58mm
● When the wide-angle panel is used, the zoom
button (ZOOM) will not work. (The wide-angle
panel is in a slit on the top of the flash head. Pull
it out so that it covers the front of the flash head.
If the catchlight panel is not necessary, leave it in
the slit.)
22
Page 25
35mm Camera645 Camera67 Camera
Digital Camera
23
Page 26
● In the (A.Zoom) mode, the flash coverage angle
will be adjusted automatically to suit the lens
focal length when you press the shutter release
button halfway, and the camera exposure
metering timer is on.
● A warning signal appears as follows when the
flash cannot cover the focal length of the
camera.
- The zoom indicator blinks for the combination of
the following camera and lenses.
CameraLens Types
*ist D seriesDA, D FA, FA J, FA, F
35mm autofocus single
lens reflex cameras
645N2, 645NFA645
- The warning signal does not appear for the
combination of the following cameras and focal
lengths.
D FA, FA J, FA, F
CameraFocal length
*ist, MZ-L/ZX-L/MZ-6,
MZ-S
*ist DL, *ist DS, *ist D
20 mm and over, less
than 24 mm
13 mm and over, less
than 16 mm
24
● In the (A.Zoom) mode, if there is no lens focal
length information, the flash coverage angle will
be set automatically to 24mm with a 35mm
camera. With a 645 camera, it will be set to
45mm, with a 67 camera it will be 60mm, and with
a digital camera it will be 16 mm.
● When using the wide-angle panel, the angle will
be fixed at 20 mm for a 35 mm camera, 35 mm for
a 645 camera, 55 mm for a 67 camera, and 13 mm
for a digital camera in both A.Zoom and M.Zoom.
Page 27
Using the Flash Modes
The AF540FGZ has the following flash modes. Select
the mode best suited for the subject.
Before photographing, confirm the following.
1. Whether your camera supports the desired flash
mode.
➝ Cameras that Support Each Flash Mode
(page 60)
2. Whether you can use the desired function with
the combination of your camera and the flash
mode you have set.
➝ Functions Related to Each Flash Mode
(page 64 - 71)
P-TTL auto flash (P-TTL)
A pre-flash is discharged before the main flash so that
the multi-segment metering sensor can measure the
subject's distance, brightness, brightness difference,
backlit condition, etc. The data obtained is incorporated
to set the output of the main flash. This mode obtains
more accurate results than with the conventional TTL
mode. Refer to page 26 for instructions on how to use
this flash mode.
TTL auto flash (TTL)
Based on the amount of light reflected off the film of the
camera, the camera adjusts the flash output
automatically to obtain a correct exposure. Refer to
page 27 for instructions on how to use this flash mode.
Auto flash (A)
The built-in flash metering sensor adjusts the flash
output automatically. Use with cameras that are not PTTL or TTL Auto flash compatible. Refer to page 28 for
instructions on how to use this flash mode.
Manual flash (M)
When the camera is set to manual exposure, manual
flash can be set to suit the subject distance and
aperture. The manual flash output can be set to 1/1,
1/2, 1/4, 1/8, 1/16, 1/32, or 1/64. Refer to page 30 for
instructions on how to use this flash mode.
25
Page 28
■ P-TTL Auto Flash
Effective flash range
Refer to page 25 for the features and conditions of use
of this flash mode.
Procedure
Turn on the flash unit.
1
Press the flash mode button (MODE) until
2
(P-TTL) is displayed on the LCD panel.
26
Set the sync mode switch to leading curtain sync
3
(), trailing curtain sync (), or
contrast-control (), according to the
subject. (Refer to page 32.)
● After turning the power (ON), the setting will be
(P-TTL) and (A.Zoom).
Set the zoom position. (The setting method
4
differs according to your camera and lens. Refer
to page 21.)
Confirm that the subject is within the effective
5
flash range and the ready lamp is lit. Then take a
picture.
● In the following cameras, if the correct flash
output is obtained, the flash mode indicator and
( ) in the viewfinder will blink.
*ist, MZ-S, MZ-L/ZX-L/MZ-6
For details, refer to “Auto Check Display” on
page 11.
● The correct flash output is obtained in P-TTL
auto mode only when the flash unit is used with
autofocus lenses.
● If necessary, an exposure compensation amount
can be set between +1.0 to -3.0 steps in 0.5-step
increments. (Refer to page 18.)
Page 29
■ TTL Auto Flash
Refer to page 25 for the features and conditions of use
of this flash mode.
Procedure
Turn on the flash unit.
1
Press the flash mode button (MODE) until (TTL)
2
is displayed on the LCD panel.
Set the sync mode switch to leading curtain sync
3
(), trailing curtain sync (), or
contrast-control (), according to the
subject. (Refer to page 32.)
Set the zoom position. (The setting method
4
differs according to your camera and lens. Refer
to page 21.)
Confirm that the subject is within the effective
5
flash range and the ready lamp is lit. Then take a
picture.
● In the following cameras, if the correct flash
output is obtained, the flash mode indicator and
( ) in the viewfinder will blink.
35 mm single lens reflex cameras
SF10, 672, 645N2, 645N, 645, LX, Super A/
Super Program
For details, refer to “Auto Check Display” on
page 11.
except for SF7/
27
Page 30
■ Auto Flash
Refer to page 25 for the features and conditions of use
of this flash mode.
28
Page 31
Procedure
Turn on the power switch.
1
Press the flash mode button (MODE) until (A) is
2
displayed on the LCD panel.
Set the aperture value and ISO.
3
Press the select button (S) so that (f/stop) on
the LCD panel blinks.
Turn the adjustment dial to set the aperture
value.
● The effective flash range is displayed on the LCD
panel bar graph.
Confirm that the subject is within the effective
flash range and press the select button (S).
Turn the adjustment dial to set the ISO after
(ISO) starts blinking.
Press the select button (S). The setting is
complete if (ISO) stops blinking.
Set the lens aperture to the same aperture value
4
as that set on the LCD panel.
● The camera's aperture value is synchronized
with that of the flash unit when the camera
exposure mode is set to Programmed AE or
Shutter Priority AE.
Set the zoom position. (The setting method
5
differs according to your camera and lens. Refer
to page 21.)
● Select (M.Zoom) regardless of the type of lens
being used.
Confirm that the subject is within the effective
6
flash range and the ready lamp is lit. Then take a
picture.
● In the following cameras, if the correct flash
output is obtained, the flash mode indicator and
( ) in the viewfinder will blink.
645, LX, Super A/Super Program, MZ-M/ZX-M,
P30T, P30N/P3N, P30/P3, P50/P5, A3Date,
A3DateS, Program A/Program Plus
For details, refer to “Auto Check Display” on
page 11.
● If the power is turned temporarily OFF, the flash
will be set to P-TTL or TTL auto. Return the
setting to Auto flash.
● The sync mode will be fixed in leading curtain
sync.
29
Page 32
■ Manual Flash
Refer to page 25 for the features and conditions of use
of this flash mode.
30
Procedure
Turn on the power switch.
1
Press the flash mode button (MODE) to display
2
(M) (1/xx) on the LCD panel.
● You can set the flash output from 1/1 to 1/64. See
page 18.
Set the zoom position. (The setting method
3
differs according to your camera and lens. Refer
to page 21.)
Set the lens aperture according to the distance to
4
the subject.
Example:
If the flash zoom position is 50mm, subject distance
(between the AF540FGZ and subject) is 4 m, and
sensitivity is ISO 100, the calculation will be as
follows:
With flash output (1/1), the Guide No. will be 45
(according to the Guide No. table).
Aperture = Guide No. 45 / Subject distance 4 m =
11.25 Approx. 11 (f/Stop)
● Refer to page 82 for the guide number table.
Page 33
Confirm that the subject is within the effective
5
flash range and the ready lamp is lit. Then take a
picture.
● In the following cameras, if the correct flash
output is obtained, the flash mode indicator and
( ) in the viewfinder will blink.
645, LX, MZ-M/ZX-M
For details, refer to “Auto Check Display” on
page 11.
31
Page 34
Using the Sync Mode
The AF540FGZ has the following sync modes. Select
the mode best suited for the subject.
Before photographing, confirm the following.
1. Whether your camera supports the desired sync
mode.
➝ Cameras that Support Each Sync Mode
(page 62)
2. Whether you can use the desired sync mode with
the combination of your camera and the flash
mode you have set.
➝Functions Related to Each Flash Mode
(page 64 - 71)
3. Restrictions for the use of each sync mode.
➝ Sync Mode Restrictions (page 72 - 76)
Leading Curtain Sync Mode
This is the most commonly used sync mode. In this
mode, the flash discharges at the instant the first
shutter curtain completes its travel. You can use this
mode with the shutter speed set to the X-sync speed or
slower. Refer to page 33 for instructions on how to use
this sync mode.
32
Trailing Curtain Sync Mode
In this sync mode, the flash is discharged at the instant
the second curtain begins its travel. This mode will
freeze the subject with a blur appearing after the
subject under a slow shutter speed condition. Refer to
page 33 for instructions on how to use this sync mode.
High-Speed Sync Mode
This sync mode will enable flash synchronization with
shutter speeds faster than the X-sync speed. Since
there is no sync speed limitation, high-speed sync is
effective for fill-flash in daylight. Refer to page 34 for
instructions on how to use this sync mode.
Contrast Control Sync Mode
This sync mode enables you to photograph with
multiple flash units, utilizing the difference of the light
intensity of each flash unit. The ratio of flash light
intensity between the flash unit set to this sync mode
and the other flash unit is 1:2. Refer to page 36 for
instructions on how to use this sync mode.
Page 35
■ Leading Curtain Sync Mode
Refer to page 32 for the features and conditions of use
of this sync mode.
Procedure
Set the power switch to the (ON) position.
1
Set the sync mode switch to leading curtain sync
2
().
Confirm that the subject is within the effective
3
flash range and the ready lamp is lit. Then take a
picture.
■Trailing Curtain Sync Mode
Refer to page 32 for the features and conditions of use
of this sync mode.
Procedure
Set the power switch to the (ON) position.
1
Set the sync mode switch to trailing curtain sync
2
().
Confirm that the subject is within the effective
3
flash range and the ready lamp is lit. Then take a
picture.
● The flash unit will switch to the trailing curtain
sync mode when the shutter release button is
pressed halfway down.
33
Page 36
■ High-Speed Sync Mode
Refer to page 32 for the features and conditions of use
of this sync mode.
● As can be seen in the table on page 84, as the
shutter speed becomes faster, the guide number
becomes smaller. Accordingly, it should be
noted that the distance for taking pictures would
become shorter.
34
Procedure
Turn on the camera. Set the exposure mode to a
1
mode other than the Programmed AE.
Attach the flash unit to the camera’s hot shoe and
2
turn it on.
Set the sync mode switch to high-speed sync
3
().
● The flash will be set to high-speed sync mode
and () will be shown on the LCD panel only
when the shutter speed exceeds X-sync speed.
To set exposure compensation, press the select
4
button (S) so that (0.0) blinks. Then turn the
adjustment dial to set the exposure
compensation amount. Press the select button
(S) again to stop the blinking.
The exposure compensation amount can be set
from +1.0 to -3.0 steps in 0.5-step increments.
(Refer to page 18.)
Set the zoom position. (The setting method
5
differs according to your camera and lens. Refer
to page 21.)
Page 37
Check the flash range by looking at the bar graph
6
on the LCD panel.
Confirm that the subject is within the effective
7
flash range and the ready lamp is lit. Then take a
picture.
● Please read the camera operating manual for
camera operation.
● High-speed sync is possible with the camera
separated (wireless) from the AF540GZ. (Refer to
page 46.)
35
Page 38
■ Contrast Control Sync Flash
Refer to page 32 for the features and conditions of use
of this sync mode.
● Refer to “Connecting the AF540FGZ with the
Extension Cord” on page 59 on using the
AF540FGZ detached from the camera.
36
Procedure
Turn on the power switch.
1
Set the sync mode switch to contrast-control
2
().
Set the zoom position. (The setting method
3
differs according to your camera and lens. Refer
to page 21.)
● If the AF540FGZ is much closer to the subject
than the flash unit to be used in combination,
use (M.Zoom) to set the zoom position to a
shorter lens focal length.
Turn on the flash units to be used in combination.
4
● If the camera's built-in flash unit is part of the
combination, pop up the built-in flash.
Confirm that the subject is within the effective
5
flash range and the ready lamp is lit. Then take a
picture.
Page 39
With a single flash
● If you are using a single flash unit, you can only
perform leading curtain sync photography when
the sync mode switch is set to contrast-control
().
With contrast control sync flash
37
Page 40
Advanced Functions
■ Wireless Mode
With the AF540FGZ, you can take photographs with
the flash unit separated from the camera wirelessly in
P-TTL mode.
Combine the flash unit with the built-in flash unit of the
camera or another AF540FGZ attached to the camera.
● The AF360FGZ can be used interchangeably with
AF540FGZ flash units for wireless mode
photography.
Before photographing, confirm the following.
1. Whether your camera supports this function.
➝ Cameras that Support Wireless Mode
(page 63)
2. Whether you can use this function with the
combination of your camera and the flash mode
you have set.
➝ Functions Related to Each Flash Mode
(page 64 - 71)
3. Whether the slave mode is set to SL1.
➝ Slave Mode Setting (page 52)
38
Notes on Wireless Flash Control
(P-TTL photography)
When using the AF540FGZ in wireless mode, the
following information is transferred between the flash
units attached to the camera and separated from the
camera, before the flash units are discharged.
Shutter release button is fully pressed.
The flash attached to the camera emits a small
control flash (relays the flash mode of the
camera).
The external AF540FGZ emits a pre-flash
(verifies the state of the subject).
The flash attached to the camera emits a small
control flash (relays the flash output amount to
the external AF540FGZ).
● The flash attached to the camera will emit a preflash once more after this to relay the flash
duration time when HS (high-speed sync) is set.
The external AF540FGZ discharges the main
flash (where both flash units discharge main
flashes, refer to page 44).
Page 41
● Control Flash and Main Flash
The purpose of the control flash of the wireless
mode is to send information to the other flash
unit before taking a picture. The main flash
discharges at the actual time a picture is taken in
the same manner as traditionally done.
● When setting up a flash unit separately from the
camera, use the off-camera shoe adapter F when
using a tripod, or the off-camera shoe clip CL-10
when setting up in another location such as
tabletop, chair, etc.
● Keep the distance from the built-in flash unit and
AF540FGZ to the subject within 4 meters.
39
Page 42
Using the AF540FGZ in Combination with a Built-in Flash Unit
● The AF540FGZ can be used in combination with
a built-in flash unit only when used with the
following cameras.
*ist D, *ist, MZ-S, MZ-L/ZX-L/MZ-6, K10D (NOTE),
K20D, K200D
(NOTE)
However, this requires the firmware to be updated
to Version 1.10 or later. Download the firmware for
the K10D from the following URL, and install it on
your camera.
http://www.pentax.jp/english/support/download_digital.html
You may also contact your nearest PENTAX
service center for firmware updates. (This will
involve a fee.)
40
Setting switch
Page 43
Firstly, set the wireless mode and channel of the
12
AF540FGZ, and register them on the camera.
Turn the camera off and then attach the
AF540FGZ to the hot shoe of the camera.
Set the power switch of the flash unit to
(WIRELESS).
Press the wireless mode button (M/C/S) the
number of times required to display SLAVE on
the LCD panel.
● You cannot set the flash unit to SLAVE while the
exposure metering timer is on (while information
relating to aperture etc. is displayed in the
viewfinder).
Slide down the setting switch to the (yellow
dot) to display the channel on the LCD panel.
Press the channel button (CH) and select a
channel from 1CH to 4CH.
Slide the setting switch back up to the (white
dot).
When you turn the camera on and press the
shutter release button halfway down, the
channel is registered on the camera.
Next, remove the flash unit from the camera and
place it in the desired position.
● Press the flash mode button (MODE) to display
(P-TTL) if the flash mode was set to the modes
other than P-TTL auto.
Enable the built-in flash unit of the camera and
3
set the camera flash mode to (WIRELESS).
Confirm that the AF540FGZ and built-in flash unit
4
are fully charged, and take the photograph.
A lamp on the AF540FGZ will blink.
● In the P-TTL mode, flash output setting (1/1, 2/3,
1/2, and 1/3) and flash output compensation (-3.0
to +1.0) are possible. (Refer to page 18.)
● The flash mode on the camera must be set to
(WIRELESS), otherwise the AF540FGZ will not
discharge.
● By changing the camera's function settings, you
can set the built-in flash unit so that it is not the
main flash. Refer to the operating manual for the
camera to find out how.
● For test flash, refer to page 58.
41
Page 44
When Attaching the AF540FGZ to the Camera for Control Flash
Main flash
Control flash only: not
used for main flash
(Preparation of Flash Unit Attached to Camera)
Firstly, set the wireless mode and channel of the
1
flash unit attached to the camera, and register
them on the camera.
Attach the AF540FGZ to the hot shoe of the
camera after turning the camera off.
42
Set the power switch of the flash unit to
(WIRELESS).
Press the wireless mode button (M/C/S) the
number of times required to display CONTROL
on the LCD panel.
Slide down the setting switch to the (yellow
dot) to display the channel on the LCD panel.
Press the channel button (CH) and select a
channel from 1CH to 4CH.
Slide the setting switch back up to the (white
dot).
Page 45
When you turn the camera on and press the
shutter release button halfway down, the
channel of the flash unit is registered on the
camera.
(Preparation of Separated Flash Unit)
Next, set the channel of the separated (wireless)
2
flash unit to the same channel as the flash unit
attached to the camera.
Place the other AF540FGZ in the desired
position.
Set the power switch of the flash unit to
(WIRELESS).
Press the wireless mode button (M/C/S) the
number of times required to display SLAVE on
the LCD panel.
Slide down the setting switch to the (yellow
dot) to display the channel on the LCD panel.
Press the channel button (CH) and select the
same channel that the flash unit attached to
the camera has been set to.
Slide the setting switch back up to the (white
dot).
● The two flash units must be set to the same
channel, otherwise the separated flash unit will
not discharge.
(Photographing)
Confirm that both flash units are fully charged,
3
and take the photograph.
A lamp on the wireless flash unit will blink.
43
Page 46
When Using Both an AF540FGZ Attached to the Camera and a Separated Flash Unit as
Main Flashes
Use both flash units as main flashes
(Preparation of Flash Unit Attached to Camera)
Firstly, set the wireless mode and channel of the
1
flash unit attached to the camera, and register
them on the camera.
Attach the AF540FGZ to the hot shoe of the
camera after turning the camera off.
44
Set the power switch of the flash unit to
(WIRELESS).
Press the wireless mode button (M/C/S) the
number of times required to display MASTER
on the LCD panel.
Slide down the setting switch to the (yellow
dot) to display the channel on the LCD panel.
Press the channel button (CH) and select a
channel from 1CH to 4CH.
Page 47
Slide the setting switch back up to the (white
dot).
When you turn the camera on and press the
shutter release button halfway down, the
channel of the flash unit is registered on the
camera.
(Preparation of Separated Flash Unit)
Next, set the channel of the separated (wireless)
2
flash unit to the same channel as the flash unit
attached to the camera.
Place the other AF540FGZ in the desired
position.
Set the power switch of the flash unit to
(WIRELESS).
Press the wireless mode button (M/C/S) the
number of times required to display SLAVE on
the LCD panel.
Slide down the setting switch to the (yellow
dot) to display the channel on the LCD panel.
Press the channel button (CH) and select the
same channel that the flash unit attached to
the camera has been set to.
Slide the setting switch back up to the (white
dot).
● The two flash units must be set to the same
channel, otherwise the separated flash unit will
not discharge.
(Photographing)
Confirm that both flash units are fully charged,
3
and take the photograph.
A lamp on the wireless flash unit will blink.
45
Page 48
Wireless High-Speed Sync Photography
(Using the AF540FGZ in Combination with a
Built-in Flash Unit)
Firstly, set the wireless mode and channel of the
1
AF540FGZ, and register them on the camera.
Turn the camera off and then attach the
AF540FGZ to the hot shoe of the camera.
Set the power switch of the flash unit to
(WIRELESS).
Press the wireless mode button (M/C/S) the
number of times required to display SLAVE on
the LCD panel.
46
● You cannot set the flash unit to SLAVE while the
exposure metering timer is on (while information
relating to aperture etc. is displayed in the
viewfinder).
Slide down the setting switch to the (yellow
dot) to display the channel on the LCD panel.
Press the channel button (CH) and select a
channel from 1CH to 4CH.
Slide the setting switch back up to the (white
dot).
Page 49
When you turn the camera on and press the
shutter release button halfway down, the
channel is registered on the camera.
Next, remove the flash unit from the camera and
2
place it in the desired position.
● Press the flash mode button (MODE) to display
(P-TTL) if the flash mode was set to the modes
other than P-TTL.
Set the zoom position. (Refer to page 21)
3
● Set the zoom position with (M.Zoom) regardless
of the lens you use.
Enable the built-in flash unit of the camera and
4
display () on the LCD panel.
Set the sync mode switch of the wireless flash
5
unit to leading curtain sync ().
Set the exposure mode of the camera to manual
6
exposure and the shutter speed faster than Xsync speed.
● If the shutter speed is the same or slower than
the X-sync speed of the camera, the flash will be
set to P-TTL mode, and when it is faster than Xsync speed, the flash will be set to high-speed
sync mode.
Confirm that the AF540FGZ and built-in flash unit
7
are fully charged, and take the photograph.
A lamp on the wireless flash unit will blink.
● The built-in flash unit is used for control flash
only. It will not be used for main flash.
● Refer to camera's operating manual for the
operation of the camera.
47
Page 50
(Using the AF540FGZ in Combination with
another AF540FGZ)
Firstly, set the wireless mode and channel of the
1
AF540FGZ attached to the camera, and register
the channel on the camera.
Turn the camera off and then attach the
AF540FGZ to the hot shoe of the camera.
Set the power switch of the flash unit to
(WIRELESS).
48
Press the wireless mode button (M/C/S) the
number of times required to select CONTROL
or MASTER.
CONTROL: For using the flash unit attached
to the camera as the control flash.
MASTER: For using both flash units as main
flashes.
Slide down the setting switch to the (yellow
dot) to display the channel on the LCD panel.
Press the channel button (CH) and select a
channel from 1CH to 4CH.
Page 51
Slide the setting switch back up to the (white
dot).
When you turn the camera on and press the
shutter release button halfway down, the
channel is registered on the camera.
Next, set the channel of the separated (wireless)
2
flash unit to the same channel as the flash unit
attached to the camera.
Place the other AF540FGZ in the desired
position.
Set the power switch of the flash unit to
(WIRELESS).
Press the wireless mode button (M/C/S) the
number of times required to display SLAVE on
the LCD panel.
Slide down the setting switch to the (yellow
dot) to display the channel on the LCD panel.
Press the channel button (CH) and select the
same channel that the flash unit attached to
the camera has been set to.
Slide the setting switch back up to the (white
dot).
● The two flash units must be set to the same
channel, otherwise the separated flash unit will
not discharge.
Set the sync mode switch of the wireless flash
3
unit to leading curtain sync ().
Set the exposure mode of the camera to manual
4
exposure and the shutter speed faster than Xsync speed.
● If the shutter speed is the same or slower than
the X-sync speed of the camera, the flash will be
set to P-TTL mode, and when it is faster than Xsync speed, the flash will be set to high-speed
sync mode.
Confirm that both flash units are fully charged,
5
and take the photograph.
A lamp on the wireless flash unit will blink.
49
Page 52
■ Slave
With the AF540FGZ, you can take photographs with
the flash unit separated from the camera wirelessly in
auto or manual mode.
Combine the flash unit with the built-in flash unit of the
camera or another flash unit attached to the camera.
Before photographing, confirm the following.
1. Whether you can use this function with the
combination of your camera and the flash mode
you have set.
➝ Functions Related to Each Flash Mode
(page 64 - 71)
2. Precaution When Photographing with a Slave
Flash (page 79)
● Refer to page 63 for cameras that support
wireless mode.
50
Procedure
Confirm that the slave mode is set to SL2. (Refer
1
to page 52.)
Set the flash unit’s power switch to (WIRELESS).
2
Press the wireless mode button (M/C/S) the
3
number of times required to display SLAVE on
the LCD panel.
Press the flash mode button (MODE) to set the
4
flash mode.
Page 53
Set the zoom position to suit the subject and
5
place the flash unit at the desired location.
● When setting up a flash unit separately from the
camera, use the off-camera shoe adapter F when
using a tripod, or the off-camera shoe clip CL-10
when setting up in another location such as
tabletop, chair, etc.
Turn the flash unit on the camera on.
6
● If the camera's built-in flash unit is part of the
combination, pop up the built-in flash unit.
Check that the ready lamp is lit, then take the
7
picture.
● When charging is complete, ( ) is lit in the
viewfinder of the camera.
● Position the slave unit(s) so that the slave
sensor can receive the flash discharged by the
camera’s built-in flash unit or attached flash unit.
● The AF540FGZ will discharge at the same time
that the camera’s flash discharges.
● Keep the distance from the built-in flash unit and
AF540FGZ to the subject within 4 meters.
● The slave unit will turn off automatically after
about 1 hour of non-operation when the auto
power off function is set.
● Do not use red-eye reduction with the camera’s
flash. This will result in the AF540FGZ firing by
the pre-flash. For the same reason, set the
camera to manual focus when firing the flash
continuously so that the AF spotbeam does not
operate with cameras that have AF spotbeam
functions.
51
Page 54
■ Slave Mode Setting
To properly control the slave flash, it is necessary to set
the slave mode settings.
2 seconds
or more
52
Procedure
Slide the setting switch up.
1
Press the LCD panel illumination button (LIGHT)
2
for 2 seconds or more. SL1 will be displayed.
Press the select button (S) to select SL 1 or
3
SL 2.
SL 1: When photographing in wireless mode
SL 2: When photographing with slave flash
● The flash will not discharge properly if the slave
mode was set to the wrong mode. It may not
discharge at all or may discharge simultaneously
with the control flash.
Press the LCD panel illumination button (LIGHT)
4
to finish setting.
●
In SL 2, fluorescent lamps flicker may contribute to
flash unit’s erroneous firing on rare occasions.
Page 55
■ Slow-Speed Sync Photography
When using a normal flash to photograph a subject in a
night or evening setting, the background will appear
very dark because a normal flash light cannot
sufficiently light it. However, it is possible to balance
both subject and background by using the flash to
properly expose the foreground subject and a slow
shutter speed to expose the low light background.
Before photographing, confirm the following.
1. Whether your camera support this function
➝Cameras that Support Slow-Speed Sync Mode
(page 64)
2. Whether you can use this function with the
combination of your camera and the flash mode
you have set.
➝Functions Related to Each Flash Mode
(page 64 - 71)
● Refer to the camera operation manual for details.
53
Page 56
■ Bounce Flash
With the AF540FGZ, you can tilt and swivel the flash
head to aim at the ceiling or wall to bounce the flash
before it reaches the subject. Doing so creates softer
light and shadows to make the picture look more
natural. Bouncing the flash will decrease the flash
intensity by the time it reaches the subject. Therefore,
this function is effective when photographing in P-TTL
or TTL mode at short distances.
54
The bounce angle can be set to the following angles.
● Hold the bounce lock release button and tilt the
flash head downward when you set the bounce
angle at -10°.
● When using bounce flash, () will be displayed
on the LCD panel.
● The effective flash range will blink only when the
bounce angle is set at -10°.
● It is recommended to set the bounce angle at
-10° to prevent uneven exposure when the
distance to the subject is within 1m.
P-TTL, TTL Auto Flash Photography
The amount of reflective light will change according to
the condition of the reflective surface, angle, and
distance. However, with TTL auto flash units bounce
flash photography can be relatively easily done.
Confirm the flash status indicator in the viewfinder or
the auto check display in the LCD panel when taking
pictures.
Manual Flash Photography
The amount of light during bounce flash photography is
greatly affected by the condition of the reflective
surface, therefore test pictures should be taken
beforehand or changing the exposure and taking
several pictures may be recommended.
● When taking color photographs, if the reflective
surface for the bounce flash is colored, the
picture will be affected by the color and unless
this is intentional, a white surface should be
used.
● Bounce flash photography is greatly affected by
the surrounding conditions. A photography
manual and other references are recommended.
55
Page 58
■ AF Spotbeam
The AF540FGZ features a built-in red spotbeam
projector to assist the autofocus system in dim light and
low-contrast conditions. When using the flash with
autofocus camera in dark conditions, the spotbeam will
be projected automatically depending on the ambient
lighting conditions. This function is activated only when
the camera is set to autofocus. By setting the flash
mode to (SB), the AF540FGZ can be used exclusively
as a focusing aid in dim light.
Using the AF540FGZ Spotbeam
Exclusively as a Focusing Aid
1.Set the power switch to the (ON) position.
2.Press the flash mode button (MODE) to select (SB).
3.Set the camera to the autofocus mode.
4.Press the shutter release button halfway down to let
the AF spotbeam discharge.
● The AF spotbeam does not work in bright light
conditions.
● If the In-focus indicator does not light up in
several seconds, it means that the subject is
hard to autofocus. In this case, use the manual
focus mode to focus on the subject.
56
● To change the composition, raise your finger off
the shutter release button and press it halfway
down again to recompose the picture.
● When using the AF540FGZ’s built-in AF
spotbeam, the AF spotbeam built into the camera
will not operate.
● The AF spotbeam on the flash unit works
accurately only when mounted onto the camera’s
hot shoe.
● The flash does not discharge when using the
AF540FGZ spotbeam exclusively as a focusing
aid.
Page 59
■ Wide-Angle Panel and Catchlight
Panel
The AF540FGZ has a built-in wide-angle panel and
catchlight panel at the top of the flash head.
Execute the following if necessary.
Pull out both the wide-angle panel and catchlight
1
panel.
Store the panel you are not using.
2
.
● When storing the wide-angle panel, push it
inward while holding the catchlight panel so that
it does not catch on the catchlight panel.
● When storing the catchlight panel, do so by
pushing it inward.
1.Wide-angle panel
The wide-angle panel expands flash coverage angle for
the following lenses. The flash zoom position will be
fixed at the same position as the focal length of the
lens.
13 mm for digital camera, 20 mm for 35 mm camera,
35mm for 645 camera, 55mm for 67 camera.
2.Catchlight panel
A catchlight is a reflection of light source in the eyes.
It usually appears as a white dot and makes the human
subject look more lively. Set the bounce flash angle to
90° and get close to the subject before taking the
picture.
Catchlight panel
Wide-angle panel
57
Page 60
■ Modeling Flash/Test Flash
Before taking the picture, firing a modeling flash helps
you to see how shadows are cast on the subject.
Modeling Flash
Slide the setting switch down (yellow dot).
1
Check that the flash is ready, then press the
2
modeling button (MODELING). The flash will
discharge continuously for one second.
After firing the modeling flash, slide the setting
3
switch up (white dot).
● To prevent the flash tube from overheating or
deteriorating, do not discharge the modeling
flash more than 10 consecutive times. After the
tenth time, let the flash unit rest for at least 10
minutes.
Test Flash
Check that the flash is ready, then press the test button
(TEST). The test flash will discharge.
58
Cameras Capable of Modeling Flash or
Test Flash Photography Using the Camera
Button
With the following cameras, a button on the camera
can be used instead of the modeling button
(MODELING) or the test button (TEST). This operation
can be carried out with either an attached flash unit or a
wireless flash unit. For information on how to arrange
this, refer to the operating manual for the camera.
*ist D: You can use the OK button. (Refer to "Custom
Function Chart" in the camera's operating
manual.)
*ist: You can use the flash pop-up button. (Refer to
"Setting the Custom Function" in the camera's
operating manual.)
MZ-S: You can use the LCD illuminator button. (Refer
to "PENTAX Functions" in the camera's
operating manual.)
Page 61
■ Connecting the AF540FGZ with the
Extension Cord
When using the AF540FGZ separately from the
camera connected by an extension cord, use the
optional extension cord F5P/F5P L. Attach the
extension cord F5P/F5P L to the camera using the
optional hot shoe adapter FG or the optional hot shoe
adapter F (refer to the diagram on the right).
● When using the AF540FGZ in combination with
the built-in flash unit of the following cameras,
use the hot shoe adapter FG. If you use the hot
shoe adapter F, the built-in flash unit will not pop
up.
K20D, K200D, K100D Super, K10D, K110D,
K100D, *ist DL2, *ist DS2, *ist DL, *ist DS, *ist D,
*ist, MZ-L/ZX-L/MZ-6, MZ-S, MZ-60/ZX-60, MZ-5N/
ZX-5N, MZ-30/ZX-30, MZ-7/ZX-7, MZ-3, MZ-5/ZX-5,
MZ-10/ZX-10, MZ-50/ZX-50
You can use the hot shoe adapter F with any
cameras other than those above.
● The 672 does not come with a hot shoe. The
optional hot shoe grip 672 should be used.
Refer to the hot shoe grip 672 operating manual
for instructions.
● When setting up the flash unit separately from
the camera, use the off-camera shoe adapter F
when using a tripod, or the optional off-camera
shoe clip CL-10 when setting up in another
location such as tabletop, chair, etc.
● The off-camera shoe adapter F cannot be
attached to the bundled stand.
Hot shoe
Extension cord
adapter F
F5P/F5P L
G
59
Page 62
Supported Functions for PENTAX Cameras
■ Cameras that Support Each Flash Mode
Cameras that support each of the flash modes are listed below.
Please note that functions related to each flash mode differ. Refer to "Functions Related to Each Flash Mode" (page
64 - 71).
- When the exposure mode is Programmed AE, Shutter Priority AE, or
Aperture Priority AE, even if you set the flash mode to manual (M), it
will automatically switch to (P-TTL) while the camera's exposure meter
is operating (while information is being displayed in the viewfinder). You
can actually use Manual flash mode (M) when the camera exposure
mode is set to Manual (M).
(With the K20D, K200D, K100D Super, K10D, K110D, K100D, *ist DS2,
*ist DS, and *ist D, if the aperture of the lens is in a position other than
A, the flash mode will switch to TTL.)
- In trailing curtain sync or contrast control sync mode, the flash mode
will automatically be switched to (P-TTL) when you press the shutter
release button halfway down, even if you have set it to manual (M).
- If the camera exposure metering timer is on, you cannot select (A) or
(M) by pressing the flash mode button (MODE).
- Although (P-TTL) is displayed in the following cameras, the actual
photograph is taken with (TTL).
LX, Super A/Super Program, 645
Page 63
Flash ModeCameraNotes
TTL Auto Flash
(TTL)
Auto Flash (A)Aperture setting
Manual Flash
(M)
672- In trailing curtain sync or contrast control sync mode, the flash mode
Aperture setting
capable PENTAX
single lens reflex
cameras
will automatically be switched to (TTL) when you press the shutter
release button halfway down, even if you have set it to manual (M).
- When the exposure mode is Programmed AE, Shutter Priority AE, or
Aperture Priority AE, the flash mode will automatically be switched to
(TTL), even if you have set it to manual (M).
- In trailing curtain sync or contrast control sync mode, the flash mode
will automatically be switched to (TTL) when you press the shutter
release button halfway down, even if you have set it to manual (M).
- If the camera exposure metering timer is on (information is displayed in
the viewfinder), you cannot select (A) or (M) by pressing the flash mode
button (MODE).
- You cannot use (TTL) with the SF7/SF10.
- Under the following conditions, autofocus cameras can also use (A).
- The camera exposure mode is set to manual exposure.
- The camera exposure metering timer is off.
-
With the following combinations of cameras and exposure modes, you
cannot photograph correctly if the aperture is set to a value brighter than F2.
Camera: Z-5P, Z-5, Z-1P/PZ-1P, Z-1/PZ-1, SFXN/SF1N, SF7/SF10, SFX/SF1
Exposure mode: Programmed AE and Shutter Priority AE modes
-
-
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■ Cameras that Support Each Sync Mode
Cameras that support each of the sync modes are listed below.
Please note that the conditions under which they can be used differ depending on camera type and settings. For
details, refer to the restrictions reference pages.
Sync ModeCamera
Leading curtain sync () All PENTAX single lens reflex cameras provided with a hot shoepage 72
Trailing curtain sync ()Digital single lens reflex
Contrast control sync
()
cameras
Film cameras (medium format)672
Film cameras (35mm autofocus
single lens reflex cameras)
Digital single lens reflex
cameras
Film cameras (medium format)672
Film cameras (35mm autofocus
single lens reflex cameras)
(NOTE) For the K10D, the firmware must be updated to Version 1.10 or later (page 40).
You can use the slave flash instead, if your camera does not support wireless mode. In this case, the available flash
modes are auto and manual (page 50).
Digital single lens reflex
cameras
Film cameras (35mm
autofocus single lens reflex
cameras)
- When photographing in wireless mode, set
the slave mode to SL1 (refer to page 52).
- You cannot photograph in wireless mode in
combination with the built-in flash unit with
the following cameras.
K100D Super, K110D, K100D, *ist DL2, *ist
DS2, *ist DS, *ist DL
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■ Cameras that Support Slow-Speed Sync Mode
FunctionCameraNotes
Slow-speed
sync
Digital single lens reflex
cameras
Film cameras (35mm
autofocus single lens reflex
cameras)
Film cameras (medium
format)
Film cameras (35mm
manual focus single lens
reflex cameras)
- Capable of setting the shutter
speed slower than the flash Xsync speed.
- The shutter speed is not
automatically switched even if
the flash unit has finished
charging.
Slow-speed sync is not possible
in the following cameras except
with B (Bulb Exposure).
- Cameras that are not capable of
setting the shutter speed slower
than the flash X-sync speed.
- Cameras in which the shutter
speed is automatically switched
to the X-sync speed when the
flash unit has finished charging.
- Cameras whose shutter speed
can be switched manually only
with B (Bulb Exposure).
■ Functions Related to Each Flash Mode
Supported flash modes and sync modes differ for each camera model.
Refer to the following table.
(N: usable, O: usable under certain conditions, X: unusable, -: Flash mode not supported)
* Where the flash mode is set to SB (AF spotbeam), the flash unit will not discharge (refer to page 56).
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1. Cameras that Support P-TTL Auto Flash Mode
Type A (Digital single lens reflex cameras):K20D, K200D, K100D Super, K10D, K110D,
Type B (Film cameras (35mm autofocus single lens reflex)):*ist, MZ-L/ZX-L/MZ-6, MZ-S
Leading curtain sync-NNNNNNNNN---
Trailing curtain sync-NNNXXX X X X - - -
Slow-speed sync-NNNNNXNN X---
High-speed sync-XXXXXXXXX--Automatic switching
*1: Slow-speed sync with B (Bulb Exposure) for the A3Date and A3DateS.
*2: Except ME.
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Type E: 35mm single reflex cameras other than those in Type A to D, 67 camera
Flash Mode
Camera type(E)(E)(E)(E)(E)
Leading curtain sync--NN-
Trailing curtain sync--XXSlow-speed sync--XXHigh-speed sync--XXAutomatic switching to
X-sync speed when
flash is charged
Flash ready display in
viewfinder
Auto check display--XXSlave flash--XXWireless control--XXRed-eye reduction--XXAF spotbeam-----
(P-TTL) P-TTL auto
flash photography
--XX-
--XX-
(TTL) TTL auto
flash photograph
(A) auto flash
y
photography
(M) manual flash
photography
(SB) AF
spotbeam
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■ Sync Mode Restrictions
Leading Curtain Sync Photography ()
This sync mode can be used with all PENTAX single lens reflex cameras provided with a hot shoe. However, there
are restrictions depending on camera type and settings.
Camera ModelCamera SettingsRestrictions
Z-1/PZ-1, Z-5, Z-1P/PZ-1P,
Z-5P
SFXN/SF1
N
Trailing Curtain Sync Photography ()
Cameras that support this sync mode are as follows.
The shutter speeds that can be used differ according to the type of camera.
*ist D1/60 sec. or slower
6721/15 sec.fixed (in Aperture Priority AE)
Exposure mode: Programmed AE
(Hyper Program), Hyper Program
Aperture Priority AE, Aperture Priority
AE, Hyper Manual by pressing IF button
Exposure mode: Hyper Program Shutter
Priority AE
Exposure mode: Programmed AE,
Shutter Priority AE
Exposure mode: Aperture Priority AEThe shutter speed is fixed at 1/125 sec.
The minimum shutter speed varies
depending on the focal length of the lens
you are using.
The minimum shutter speed changes
depending on the ambient brightness.
The shutter speed changes to within
1/60 to 1/125 sec.
Camera ModelShutter Speed
1/90 sec. or slower
1/15 sec. or slower (in manual exposure)
Page 75
Camera Category
Film cameras
(medium format)
645N2, 645N
Camera ModelShutter Speed
1/45 sec. fixed (in Programmed AE and Aperture Priority AE)
1/45 sec. or slower (in Shutter Priority AE and
manual exposure)
Film cameras
(35mm autofocus
single lens reflex)
MZ-S1/90 sec. or slower
Z-1/PZ-1, Z-5, Z-1P/PZ-1P, Z-5P1/125 sec. or slower (in Programmed AE and
Aperture Priority AE in Hyper Progam)*
1/125 sec. or slower (in Shutter Priority AE in Hyper
Program)*
2
1
Z-10/PZ-101/60 sec. fixed (in Programmed AE)
1/60 sec. or slower (in manual exposure)
SFXN/SF1N, SFX/SF1, SF7/SF10 1/60 sec. fixed (in Programmed AE, Shutter Priority
AE and Aperture Priority AE)
1/60 sec. or slower (in manual exposure)
35mm autofocus single lens reflex
1/60 sec. or slower
cameras other than those above
*1: The minimum shutter speed varies depending on the focal length of the lens you are using.
*2: The minimum shutter speed varies depending on ambient light.
● Under the following condition, the flash mode automatically switches to P-TTL auto flash:
the flash mode is set to manual flash (M), and the sync mode is set to trailing curtain sync ().
● () is displayed on the LCD panel only in the following case:
The shutter release button of the camera is pressed halfway, and the camera exposure metering timer is
on (information is displayed in the viewfinder).
●
The built-in flash units of the following cameras do not have the trailing curtain sync function. When used in
combination with the AF540FGZ, the built-in flash unit does not discharge - only the external flash unit discharges.
SFX/SF1, SFXN/SF1N, SF7/SF10, Z-10/PZ-10
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Contrast Control Sync Photography ()
Flash units that support this sync mode are as follows.
However, the flash modes, cameras, and camera shutter speeds that can be used differ depending on the flash unit.
Set the shutter speed to the speed shown in the shutter speed column below.
Flash UnitFlash ModeCamera Model
AF540FGZ, AF360FGZ,
AF200FGZ, built-in flash
units
AF330FTZ, AF500FTZ,
AF400FTZ, AF240FT
Camera CategoryCamera ModelShutter Speed
Digital single lens reflex
cameras
Film cameras (medium
format)
74
P-TTL auto flash
(Even if you set the flash to another
flash mode, the photograph is
automatically taken in P-TTL auto
flash mode.)
TTL auto flash
(Even if you set the flash to another
flash mode, the photograph is
automatically taken in TTL auto
flash mode.)
672, 645N2, 645N, or any 35mm autofocus
single lens reflex camera
1/180 sec. or slower
1/15 sec. or slower (in manual exposure)
Page 77
Camera CategoryCamera ModelShutter Speed
Film cameras (medium
format)
645N2, 645N1/45 sec. fixed (in Programmed AE and Aperture
Priority AE)
1/45 sec. or slower (in Shutter Priority AE and
manual exposure)
Film cameras (35mm
autofocus single lens
reflex cameras)
Z-1/PZ-1, Z-1P/PZ-1P, Z-5, Z-5P1/60 sec. fixed (in Programmed AE and Aperture
Priority AE in Hyper Program)*
1/60 sec. or slower (in Shutter Priority AE in
Hyper Program)*
2
1
Z-10/PZ-101/60 sec. fixed (in Programmed AE)
1/60 sec. or slower (in manual exposure)
SFXN/SF1N, SFX/SF1, and SF7/
SF10
All 35mm autofocus single lens
1/60 sec. fixed (in Programmed AE)
1/60 sec. or slower (in manual exposure)
1/60 sec. or slower
reflex cameras other than above
*1: The minimum shutter speed varies depending on the focal length of the lens you are using.
*2: The minimum shutter speed varies depending on ambient light.
● The flash mode automatically switches to P-TTL auto under the following condition:
When the flash mode is set to manual flash (M), and the sync mode is set to contrast control sync
().
● () is displayed on the LCD panel only in the following case:
The shutter release button of the camera is pressed halfway, and the camera exposure metering timer is
on (information is displayed in the viewfinder).
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High-Speed Sync Mode Photography ()
Cameras that support this sync mode are as follows. Be sure to set your camera according to the following settings:
- Shutter speed:faster than flash unit's X-sync speed
- Exposure mode: Tv (Shutter Priority), Av (Aperture Priority), M (manual)
Exposure modes other than the above are not compatible with this sync mode. Refer to the
Exposure Modes Not Supported by High-Speed Sync Mode column.
(Bulb Exposure)
Exposure modes other than the above are not compatible with this photographic method. Refer to
the Exposure Modes Not Supported by Slow-Speed Sync Photography column.
Exposure Modes Not Supported by
Slow-Speed Sync Photography
AUTO PICT, ,
P (except *ist and MZ-L/ZX-L/MZ-6), SCN
(K200D, K100D Super, K110D, K100D,
*ist DL2), Av (Aperture Priority) modes
programmed AE is activated) and Av
(Aperture Priority) modes
,,,,,
You can perform slow-speed sync
photography using the following
method when the camera is in Hyper
Program mode.
- Set the camera using the Av dial or
Tv dial so that the shutter speed is
slower than 1/150 sec.
Notes
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Camera Model
MZ-S, MZ-5N/ZX-5N, MZ-3,
MZ-5/ZX-5, MZ-M/ZX-M,
Z-50P, Program A/
Program Plus
MZ-50/ZX-50PICT and Av (Aperture Priority) modes
MZ-30/ZX-30, Av (Aperture Priority)
MZ-10/ZX-10Auto picture, PICT, and Av (Aperture
Z-1P/PZ-1P, Z-5P, Z-5,
Z-1/PZ-1
Z-20P, Z-70P, Z-20/PZ-20Green, Picture, and Av (Aperture Priority)
Z-10/PZ-10P (Programmed AE) mode
645, SFXN/SF1N, SFX/SF1,
SF7/SF10, Super A/
Super Program
LXAperture Priority AE mode
Exposure Modes Not Supported by
Slow-Speed Sync Photography
P (Programmed AE) and Av (Aperture
Priority) modes
modes
Priority) modes
HyP (Hyper Program), Programmed AE
mode, Av (Aperture Priority), and HyM
(Hyper Manual) modes by pressing IF
button
modes
Programmed AE, Aperture Priority AE and
Shutter Priority AE modes
,,,,,
78
Notes
You can perform slow-speed sync
photography using the following
method when the camera is in HyP
(Hyper Program) mode.
- Set the camera using the Av dial or
Tv dial so that the shutter speed is
slower than 1/250 sec.
Page 81
■ Precautions When Photographing with a Slave Flash
● Be sure to set the camera as follows:
- Exposure mode: M (manual) or B (Bulb Exposure)
* Exposure modes other than those above are not compatible with this photographic method.
● Set the slave mode of the flash unit to SL 2 (refer to page 52).
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Flash Effective Range
■ Calculating the Flash Effective
Range
When setting the lens to manual f/stop, calculate the
guide number at full flash with the use of flash's zoom
position and ISO. Divide the resulting guide number by
the aperture in use. Thus, the maximum distance is
obtained. The minimum distance is obtained in dividing
this max. distance by approx. 10.
Example:
With a 85 mm lens at f/4 and sensitivity at ISO100
For the zoom position 85mm and sensitivity at ISO100, the guide number is 54.
54 (guide number) /4 (aperture) = 13.5m (max. distance)
13.5m (max. distance) /10 = 1.35m (min. distance) Thus, flash effective range is approx. 1.35m - 13.5m.
80
However, if the minimum distance obtained is 0.7m or
less, the minimum distance will be 0.7m. Refer to page
82 for the guide number table.
Page 83
Display of Flash Effective Range
The shooting distance parameters will be displayed on
the LCD panel. Make sure that you are within the flash
effective range before taking pictures.
● The effective flash range is displayed for the
following camera and lens combinations.
CameraLens Types
K20D, K200D,
K100D Super, K10D,
K110D, K100D,
*ist D series
35mm autofocus single
lens reflex cameras
(except for SF series)
645N2, 645NFA645
If the maximum distance exceeds 22 meters,
() will blink. If the minimum distance is 0.7m
or less, () will blink.
● The flash effective range varies depending on
ISO, lens aperture in use, and/or the zoom
position (flash coverage angle). Keep this in
mind especially when you are using a variable
aperture zoom lens.
DA, D FA, FA J, FA, F,
A
D FA, FA J, FA, F, A
Effective flash range indicator
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●
■ Guide Number (GN)
Guide numbers indicate flash light intensity. The larger
the number, the farther you can reach with your flash.
From the guide number, you can easily obtain the
proper aperture setting required for an optimum
exposure.
Aperture (f/stop) =
Guide Number Table*With the wide-angle panel attached
GN/flash-to-subject distance (m)
Camera format
Flash
ISO
light
intensity
35mm85mm70mm50mm35mm28mm24mm*20mm
645150mm 135mm 100mm 70mm55mm45mm *35mm
67190mm 180mm 120mm90mm70mm60mm*55mm
Depending on the camera and lens you are using,
the effective flash range may be displayed. (Refer to
page 81.)
A number of dedicated accessories are available for this flash unit.
TR Power Pack-3
External power source which supplies power from six
C-size batteries.
Off-camera Shoe Clip CL-10
Setting clip for using the AF540FGZ as a wireless slave
flash.
Hot Shoe Adapter F
Adapter for using the AF540FGZ as a separate flash
unit using the extension cord F5P/F5P L. It can be used
in combination with the built-in flash unit.
G
Off-camera shoe adapter F
Adapter for attaching an external flash unit, etc. on a
tripod separated from the camera. It comes with a
connector for the extension cord F5P/F5P L.
● The off-camera shoe adapter F cannot be
attached to the bundled stand.
Hot Shoe Adapter F
Adapter for connecting the camera and extension cord
F5P/F5P L. It also has a hot shoe on its top.
Extension Cord F5P/F5P L
0.5m/1.5m/L(Approx.3m)
5P synchro cord to use a flash unit for single lens reflex
camera, such as the AF540FGZ or AF360FGZ,
separately from the camera. It is used in combination
with the hot shoe adapter FG or F, and/or the offcamera shoe adapter F.
Hot Shoe Grip 672
Adapter for positioning a flash unit such as the
AF540FGZ or AF360FGZ alongside the camera body.
It connects to the 672's 5P sync terminal with the
included 5P Sync Cord.
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Specifications
Typ eClip-on, TTL auto zoom flash unit with series control
Guide No.
(ISO 100)
(ISO 200)
88
Maximum 54 (ISO 100/m). In manual mode, seven-step adjustment from M1/1 to M1/64. The
focal lengths in the table below are for 35 mm single lens reflex cameras. (when using 35mm
format camera) *Wide-angle panel used
Flash duration (1/2 peak each)
Recycling time/Total number
of flashes
Consecutive Discharge
Flash Coverage AngleAuto zoom enabled with autofocus compatible camera and lens combination.
Color temperatureDaylight (Suited for daylight color film)
Effective flash rangeApprox. 0.8 m - 8.0 m (Guide No. 45, ISO 100, f/5.6)
AF spotbeamRed beam emitted under low light or low-contrast conditions.
(M1/1) flash: Approx. 1/1200 sec. (TTL) Fastest duration time: Approx. 1/20000 sec.
Battery typeRecycling time
AA Alkaline (LR6)Approx. 6 sec.Approx. 200
AA Nickel-Metal Hydride (Ni-MH) (2500mAH) Approx. 6 sec.Approx. 250
AA Lithium (FR6)Approx. 6 sec.Approx. 350
TR Power Pack III (C-size alkaline LR14 batteries) Approx. 4.5 sec.
Approx. 2 frames/sec. for 50 times, at M 1/16 output (with using AA alkaline LR-6 batteries)
Zoom position85mm70mm50mm35mm 28mm24mm 20mm*
Vertical Coverage23°26°34°45°53°60°85°
Horizontal Coverage
(7 step zoom)
Effective range: Approx. 1 m - 7 m (According to our testing conditions.)
(Wireless position) Master (M), control (C), slave (S)
(Channels) 1 to 4
Compatible modes: P-TTL, auto (A), manual (M)
Effective range: Approx. 4 m (When set to SL 1. According to our testing conditions.)
minutes in Auto. After 1 hour in the wireless mode.
Quick power on: By pressing the camera’s shutter release button halfway
Pull out manually and flash zoom position sets to 20mm.
Pull out manually.
LCD panel illumination button (LIGHT) illuminates the LCD panel for about 10 sec. or press
the button again to turn it off.
Optional external power source: TR Power Pack-3
380 g (13.4 oz.) without batteries
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Warranty Policy
All PENTAX camera accessories purchased through authorized bona fide photographic distribution channels are guaranteed
against defects of material or workmanship for a period of twelve months from date of purchase. Service will be rendered,
and defective parts will be replaced without cost to you within that period, provided the equipment does not show evidence of
impact, sand or liquid damage, mishandling, tampering, battery or chemical corrosion, operation contrary to operating
instructions, or modification by an unauthorized repair shop. The manufacturer or its authorized representatives shall not be
liable for any repair or alterations except those made with its written consent and shall not be liable for damages from delay
or loss of use or from other indirect or consequential damages of any kind, whether caused by defective material or
workmanship or otherwise; and it is expressly agreed that the liability of the manufacturer or its representatives under all
guarantees or warranties, whether expressed or implied, is strictly limited to the replacement of parts as herein before
provided. No refunds will be made on repairs performed by non-authorized PENTAX service facilities.
Procedure During 12-month Warranty Period
Any PENTAX which proves defective during the 12-month warranty period should be returned to the dealer from whom you
purchased the equipment or to the manufacturer. If there is no representative of the manufacturer in your country, send the
equipment to the manufacturer, with postage prepaid. In this case, it will take a considerable length of time before the
equipment can be returned to you owing to the complicated customs procedures required. If the equipment is covered by
warranty, repairs will be made and parts replaced free of charge, and the equipment will be returned to you upon completion
of servicing. If the equipment is not covered by warranty, regular charges of the manufacturer or of its representatives will
apply. Shipping charges are to be borne by the owner. If your PENTAX was purchased outside of the country where you wish
to have it serviced during the warranty period, regular handling and servicing fees may be charged by the manufacturer’s
representatives in that country. Notwithstanding this, your PENTAX returned to the manufacturer will be serviced free of
charge according to this procedure and warranty policy.
In any case, however, shipping charges and customs clearance fees are to be borne by the sender. To prove the date of your
purchase when required, please keep the receipts or bills covering the purchase of your equipment for at least a year. Before
sending your equipment for servicing, please make sure that you are sending it to the manufacturer’s authorized
representatives or their approved repair shops, unless you are sending it directly to the manufacturer. Always obtain a
quotation for the service charge, and only after you accept the quoted service charge, instruct the service station to proceed
with the servicing.
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This warranty policy does not affect customer’s statutory rights.
The local warranty policies available from PENTAX distributors in some countries can supersede this warranty policy.
Therefore, we recommend that you review the warranty card supplied with your product at the time of purchase, or contact
the PENTAX distributor in your country for more information and to receive a copy of the warranty policy.
For customers in the USA
STATEMENT OF FCC COMPLIANCE
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may
not cause harmful interference, and (2) this device must accept any interference received, including interference that may
cause undesired operation.
Changes or modifications not approved by the party responsible for compliance could void the user’s authority to operate the
equipment.
This equipment has been tested and found comply with the limits for a Class B digital device, pursuant to part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will
not occur in a particular installation. If this equipment does not cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one
or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Consult the dealer or an experienced radio/TV technician for help.
For customers in Canada
This Class B digital apparatus complies with Canadian ICES-003.
Pour les utilisateurs an Canada
Cet appareil numerique de la classe B est conforme a la norme NMB-003 du Canada.
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Information on disposal for users
1. In the European Union
If your product is marked with this symbol, it
means that used electrical/electronic
products should not be mixed with general
household waste. There exists a separate
collection system for these products.
Used electric/electronic equipment must be treated
separately and in accordance with legislation that requires
proper treatment, recovery and recycling of these products.
Following the implementation by member states, private
households within the EU states may return their used
electrical/electronic equipments to designated collection
facilities free of charge*. In some countries your local
retailer may also take back your old product free of charge
if you purchase a similar new one.
*Please contact your local authority for further details.
By disposing of this product correctly you will help ensure
that the waste undergoes the necessary treatment,
recovery and recycling and thus prevent potential negative
effects on the environment and human health which could
otherwise arise due to inappropriate waste handling.
2. In other countries outside the EU
If you wish to discard this product, please contact your local
authorities and ask for the correct method of disposal.
For Switzerland: Used electrical/electronic equipment can
be returned free of charge to the dealer, even when you
don’t purchase a new product. Further collection facilities
are listed on the home page of www.swico.ch
www.sens.ch
or
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HOYA CORPORATION
PENTAX Imaging System Division
2-36-9,Maeno-cho, Itabashi-ku, Tokyo 174-8639, JAPAN (http://www.pentax.jp)