Important Safeguards
Please read and follow these essential safety procedures to prevent
accidents, injury to yourself and others, as well as property damage.
Read all these instructions carefully to insure the safe use of your Sunpak
fl ash unit. After reading, retain this booklet in an easily accessible place
for future reference.
These symbols warn of the presence of non-insulated
“hazardous voltage” inside the product. Failure to observe
the instructions marked by these symbols and opening of
modifying the product may result in loss of life or serious
WARNING
bodily injury. Make sure to observe the instructions.
Failure to observe the instructions marked by this symbol while
handling the product may result in serious bodily injury or damage to
property. Make sure to observe the instructions.
(Be sure to read this page fi rst because it contains critical information about the operation of the unit.)
CAUTION
● When this unit needs maintenance, inspection or
servicing, take it to your dealer or nearest SUNPAK
service center.
● Do not attempt to open, repair, or modify this unit. It
WARNING
● Do not use accessories other than those specifi ed by SUNPAK.
● If the unit is dropped or damaged or if foreign matter enters the unit,
● Do not operate the unit near the eyes (especially those of infants).
● Make sure to install the batteries with correct +/− polarity. When
contains a high-voltage circuit, which may cause a fi re,
electric shock or serious injury.
Doing so may cause a fi re, electric shock or other injury.
bring it to your dealer or nearest SUNPAK service center.
Firing the unit near someone’s eyes may cause visual impairment.
Make sure to allow a minimum distance of approximately about 1
meter (3.3 ft), especially when taking pictures of infants.
replacing batteries, replace all of the batteries with new ones of the
same manufacturer and type. Using batteries improperly may result
in leakage, overheating, rupture, shortened service life or contact
failure.
● Keep the unit away from beverages, cosmetics or chemicals. If spilled
or splashed liquid gets inside the unit, it may result in fi re, electric
shock or injury.
● Do not operate the unit in extremely humid environments, such as a
bathroom or near a humidifi er. This may result in a fi re, electric shock
or injury.
● Always remove batteries before cleaning or otherwise maintaining the
unit.
● Do not operate the unit if there is any possibility that a fl ammable or
explosive gas is present.
● It is extremely hazardous to swallow a battery by accident. Always
keep the batteries out of reach of infants.
● Do not place the unit in a dusty place under direct
sunlight or where it can be exposed to high humidity. This
can result in overheating inside the unit, which can cause
a fi re hazard.
● Do not store the unit in a dusty place; otherwise,
CAUTION
● Do not place the unit in an unstable position, otherwise, the unit may
Other Precautions
● Do not clean the unit with benzine, lacquer thinner or alcohol. This
● Remove the batteries from the unit after use. Leaving the batteries in
subsequent use of the unit may result in a fi re or electric
shock.
fall or drop accidentally, causing damage to the unit or personal
injury.
can result in discoloration or deformation of the unit. Serious stains or
dirt should be removed with a soft dry cloth.
the unit may cause a failure or malfunction due to battery fl uid leak.
8
Welcome to the worldwide family of Sunpak owners.
Your Sunpak RD2000 is a fl ash unit designed exclusively for
use with a Canon (CA/E-TTLII), Nikon (NE/I-TTL) or Sony
(SO/ADI) digital SLR camera. Note that it cannot be used with
other cameras. Please read this owner’s manual carefully so
that you can use this unit correctly.
Table of Contents
Important Safeguards .............................................................................. 8
Features and Functions of the Sunpak RD2000 ..................................... 9
Description of Parts ...............................................................................10
Installing the Batteries ...........................................................................11
Mounting the Unit on the Camera .......................................................... 11
Test Firing .............................................................................................. 11
TTL Effective Range .............................................................................. 12
If the Picture is Too Bright or Too Dark .................................................12
Bounce Lighting ..................................................................................... 12
Using the Wide Panel ............................................................................ 13
Important Note on Successive Firing ..................................................... 13
Specifi cations and Performance ............................................................ 13
Features and Functions of the Sunpak RD2000
★When this unit is installed on a camera and switched on,
the unit automatically adjusts brightness on the E-TTL II
(Canon), I-TTL (Nikon) or ADI (Sony) operation to enable
accurate, optimum fi ring.
★The position of the subject or the use of bounce lighting
may make the brightness level insuffi cient or excessive.
This unit has an EV ADJUST button that allows you to
easily increase or decrease the brightness as required.
★Bounce lighting is possible at an upward angle of up to 90
degrees.
★Less than half the size of our previous model and weighing
about 85 grams less, the RD2000 boasts a compact,
lightweight design that provides a high degree of freedom
in camera work. In addition, when the unit is not installed on
the camera, the shoe section can be ratated inside the fl ash
body so that the unit can be carried even in a shirt pocket.
■Handling Precaution
●When the fl ash is installed on the camera, do not hold the
combination by the fl ash; otherwise the camera could slip off the
shoe.
●For details on functions interlocked with the camera, consult your
nearest SUNPAK service center or SUNPAK website (http://www.
sunpak.com).
9
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Description of Parts
Lock ring
Shoe contact pin
Wide panel
Light-emitting
section
POWER switch
EV ADJUST button
Battery cover
Battery cover
release button
10
EV adjustment indicators
READY lamp/
TEST button
Installing the Batteries
①Slide the battery cover release
button downward to open the
battery compartment.
②Insert two new “AA”-size alkaline
or NiMH batteries into the battery
compartment, ensuring that the
polarity indications “+” and “−” are
aligned correctly. The unit will not
operate properly if the batteries are
installed incorrectly.
③Close the battery cover until it
clicks.
Press the POWER switch to the
“ON” position. When the unit is
switched on, it will start charging
with a slight humming sound and
the READY lamp starts to blink.
Now the unit is ready for shooting.
(The READY lamp stops blinking
and remains illuminated when the
unit is fully charged.)
④To switch the power off, press the
POWER switch again. The READY
lamp will go off and the unit will not
fl ash.
About the READY Lamp
The fi ring power may be insuffi cient immediately after lighting of the
READY lamp. To obtain optimum brightness for shooting, wait a few
seconds before releasing the shutter after the READY lamp comes on.
* If the READY lamp blinks for more than 30 seconds, it is likely that the
batteries are exhausted and need replacement (provided that the unit is
not mounted on the camera and the READY lamp blinks for more than
30 seconds after previous fi ring).
Mounting the Unit on the Camera
Be sure to set the POWER switch to OFF before mounting or dismounting
the unit. If the POWER switch is left ON, unexpected fl ashing or a
malfunction of the camera may result.
① Firmly slide the fl ash onto the camera’s shoe and turn the lock ring to
the left to fi x the fl ash.
② Once the fl ash has been mounted on the shoe, the shutter speed will
be automatically set when both the fl ash and camera are turned on.
Now the camera is ready for fl ashing.
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* Be careful not to short-circuit the shoe terminals while the unit is
switched on without being mounted on the camera. Otherwise,
unexpected fi ring or a failure may result.
* It is recommended to use the NiMH (Nickel Metal Hydride) batteries in
order to decrease the charging time and increase the fi ring count.
Test Firing
After the READY lamp lights steadily, press the TEST/
READY button to activate test fi ring. This allows you to
confi rm that the fl ash fi res.
11
TTL Effective Range
When the subject is within the
TTL effective range, the selected
EV adjustment indicator lights
for about 3 seconds after fi ring.
If the indicator does not come on, approach the subject or open up the
aperture (decrease the f-number) and retry shooting. Changing the ISO
speed to a higher sensitivity (higher value) can also be helpful.
* The effective TTL range is shorter than usual immediately after the
READY lamp comes on.
again. If the brightness is still insuffi cient, press the button again so that
the “+1” EV adjustment indicator lights up and retry shooting.
If the picture is too bright, press the EV ADJUST button to change the
lighting EV adjustment indicator in the “-“ direction until the desired
brightness is obtained.
The adjustment with the ED ADJUST button is invalid when no EV
adjustment indicator is lit (i.e. when the TTL auto brightness adjustment
is not activated). Make sure that one of the EV adjustment indicators is lit
before pressing the EV ADJUST button.
To exit from the EV adjustment mode, press the EV ADJUST button
again. Alternatively, the EV adjustment mode can also be exited by
pressing the POWER switch to OFF then ON again.
If the Picture is Too Bright or Too Dark
The RD2000 has an EV ADJUST button for
fi ne adjustment of the brightness level.
Use this button to adjust the brightness to
obtain a satisfactory effect in the following
cases.
★ When satisfactory brightness cannot be
obtained during daylight sync fl ashing (in outdoor shooting under
sunlight, the strobe light can be used as an auxiliary light source to
minimize shadows on the subject formed by the sun) or shooting
against light.
★ When you want to take several pictures by varying the brightness.
★ When the brightness is insuffi cient in bounce lighting.
First, shoot a picture in standard auto mode (when the EV adjustment
indicator is lit) and check it on the monitor. If you fi nd that the brightness
is too high or low, press the EV ADJUST button to fi ne adjust the
brightness and take another picture.
If the picture is darker than expected, press the EV ADJUST button once
to increase the EV by one step so that the red “+0.5” EV adjustment
indicator lights up. In this condition, the unit emits light by increasing the
brightness by +0.5 EV. After shooting, check the picture on the monitor
Bounce Lighting
The light-emitting section of the RD2000 can be pointed upward for
bounce lighting.
If the fl ash is fi red by pointing the light-emitting section directly at the
subject, the picture may look unnatural due to a strong shadow produced
behind the subject under certain conditions. In such a case, pointing the
light-emitting section to the ceiling may make it possible to take beautiful
pictures with softer, more natural shadows.
The brightness of bounce lighting may sometimes be insuffi cient
depending on the distance of the ceiling (wall) surface where the light
is refl ected. In this case, press the EV ADJUST button to adjust the EV
value in the positive direction, position the AF frame in the viewfi nder on
12
the subject and half-press the shutter
release button. Confi rm that the “
mark is visible in the viewfi nder and that
the shutter speed and f-stop are correct
before fully pressing the shutter release
button.
* To prevent damage or malfunction,
do not bend the light-emitting section
above 90 degrees.
* Bounce lighting is possible simply by turning the light-emitting section
up toward the ceiling,. All other operations are identical to shooting
with direct lighting. However, note that the brightness may drop to
about 25%, though this is variable depending on the color and material
of the refl ecting surface. It is therefore recommended to open up
the aperture (to decrease the f-number as much as possible). The
surface used for bounce lighting should be as white as possible and
its refl ectivity as high as possible. Note that, in color photography, if
the refl ecting surface has a color, the colored refl ection will stain the
subject in that color.
”
Using the Wide Panel
The RD2000 has a “wide panel” attached
to it.
The fl ash usually covers an area with a
focal length up to 32 mm, and the wide
panel is for use when the lens in use is
a wide-angle lens with a shorter focal
length. Specifi cally, the wide panel makes
the fl ash compatible with a focal length
up to 24 mm.
Operation is easy. All that is needed
is fl ip up the white panel on the lightemitting section with a fi ngertip and place
it on the lens of the light-emitting section.
Note that the use of the guide panel
decreases the guide number to 14.
Important Note on Successive Firing
To prevent degradation due to overheating that may result from
successive fi ring, it is recommended to pause fi ring for more than 10
minutes after successive fi ring.
Specifi cations and Performances
Guide number 20 ISO100-m (14)
Valid focal length of lens
(Figures inside ( ) are the values
when the wide panel is used)
Firing time Approx. 1/800 sec. (Full fi ring)
Color temperature 5600K
TTL effective range
Bouncing mechanism 0, 45, 60, 75 and 90 degrees in the upward direction
Operating power “AA”-size alkaline/NiMH/Oxyride batteries x 2
Operating temperature 0° to 40°C
Dimensions During operation: 43(H) x 61(W) x 88(D) mm
Weight Approx. 100 grams (excl. batteries)
● The design and specifi cations of this product are subject to
change without prior notice.
35mm fi lm size camera or equivalent: 32 mm (24 mm)
or more
APS size digital SLR camera: 23 mm (17 mm) or more
3HOOTING
'UIDE
X
RANGE
NUMBER
When the shoe is accommodated: 35(H) x 61(W) x
88(H) mm
&ILMSPEED
)3/
3ET
FNUMBER
Initial Number of Flashes and Recycling Time
Number of fl ashes
“AA”-size alkaline batteries x 2 Approx. 200 times Approx. 5 sec.
“AA”-size NiMH batteries x 2 Approx. 280 times Approx. 4 sec,
●Number of fl ashes: Measured under normal temperature, with new batteries that are
within 3 months from their date of production, fl ashed every 30 seconds successively
and recycled to the point at which the READY lamp takes 30 seconds to come on after
the last fl ash.
●Recycling time: The minimum time taken to activate the READY lamp after fi ring under
the above conditions.
(Full power)
Recycling time
(Full power)
13
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