Pentax 645NII Operating Manual
OPERATING MANUAL
To ensure the best performance from your camera,
please read the Operating Manual before using the camera.
OPERATING MANUAL
To ensure the best performance from your camera,
please read the Operating Manual before using the camera.
Welcome to the Fantastic World of Pentax
Autofocus Multi-Mode Medium Format Photography
The Pentax , our latest development in
the area of the medium format SLR, promises a
superior 6 x 4.5cm result with 120, 220, or
70mm film.
Made possible through our vast experience and
technology accumulated over the years, the
new autofocus multi-mode assures pinsharp focus accuracy with AF Spot and AF
Wide selection, and the 6-segment multi-pattern
metering allows precise exposure control under
widely varying conditions. Unsurpassed versatility is assured through the utilizing of a full
range of exposure modes (Programmed AE,
Aperture-Priority AE and Shutter-Priority AE,
Metered Manual and TTL auto flash control), an
exposure compensation control and auto-bracketing mode and a new user-set Pentax Function
to customize the to meet the for user's
shooting preferences.
With a 645 A- or FA lens attached, the
imprints relevant information (frame number,
shutter speed, aperture setting, exposure control and auto-bracketing mode.)
The Pentax is a professional camera
possessing a number of highly sophisticated
features: built-in automated film wind, an external LCD information panel and clearly visible
LCD information in the viewfinder.
Lenses and accessories produced by other manufacturers are not made to our precise specifications
and therefore may cause difficulties with or actual
damage to your Pentax camera. We do not assume
any responsibility or liability for difficulties resulting
from the use of lenses and accessories made by
other manufacturers.
PENTAX is a trademark of HOYA Corporation.
TABLE OF CONTENTS
1
LCD Panel Indication ............................................ 3
Viewfinder Indication............................................. 3
Names of Working Parts ....................................... 4
FOR SAFE USE OF YOUR CAMERA.................. 6
Precautions for Your Camera................................ 7
Precautions for Battery Usage .............................. 9
I. BASIC OPERATION (PREPARATION) .......... 10
Attaching the Camera Strap................................ 11
Loading the Batteries .......................................... 12
Turning the Power ON ........................................ 14
• *Low Battery Warning ....................................15
Attaching the Lens .............................................. 16
Detaching/Attaching Film Holder 645.................. 18
Pressing the Shutter Release Button.................. 20
Loading Film........................................................ 20
Setting the Film Speed (ISO).............................. 24
Unloading Film.................................................... 25
Unloading the Film in Mid-Roll............................ 26
Installing the Eyecup .......................................... 27
Adjusting the Viewfinder Diopter ........................ 28
II. BASIC OPERATION (SHOOTING)................ 29
Using the Programmed AE Mode....................... 30
Using the Multi(6)-Segment Metering Mode ....... 31
Using Autofocus Mode ....................................... 32
Using the Single AF Mode.................................. 33
Using the 3-Point AF Mode ................................ 34
Using the Single-Frame Drive Mode .................. 34
Holding the Camera............................................ 35
Taking a Picture.................................................. 36
2
III. ADVANCED OPERATIONS .......................... 38
Selecting a Drive Mode ....................................... 38
• Consecutive-Frame Mode..............................38
• Self-Timer Mode.............................................39
Multiplex Exposure Mode.................................... 40
Selecting an Exposure Mode .............................. 42
• Using the Programmed AE Mode ..................42
• Using the Aperture-Priority AE Mode .............44
• Using the Shutter-Priority AE Mode ...............46
• Using the Metered Manual Mode ...................48
• Using the Bulb Exposure Mode......................50
About Exposure Compensation .......................... 52
Auto Bracketing Exposure Mode......................... 53
Switching the Metering Mode.............................. 55
• Using the Center-Weighted Metering Mode ...55
• Using the Spot Metering Mode.......................56
Using AE Lock..................................................... 57
Setting the Focus Mode Switch to the Continuous
Position ............................................................... 58
Using the Spot AF Mode .................................... 59
Focus Lock Function .......................................... 60
Manual Focusing ................................................ 61
Imprinting the Exposure Data on the Negative... 64
Using a Pentax Dedicated External Flash .......... 68
Daylight- Sync Shooting ..................................... 72
Slow-Speed-Sync Shooting................................ 73
Using the Preview Lever..................................... 74
Mirror Lock-up .................................................... 75
Pentax Functions................................................ 76
Setting Pentax Function ..................................... 78
Accessories (Optional) ....................................... 83
• Interchangeable screen ................................. 84
IV. OTHERS ....................................................... 86
Troubleshooting.................................................. 86
Specifications ..................................................... 88
Warranty Policy .................................................. 90
Statement of FCC Compliance........................... 93
LCD Panel Indication
: Frame Counter (p.22)
: Film Speed Information (p.24)
: Film Status Information (p.24)
: Battery Exhaustion Warning (p.15)
: Imprinting Exposure Data Information (p.64)
LCD (Liquid-Crystal Display)
When the LCD is exposed to high temperatures
over approximately 60°C it may blacken, but when
the temperature normalizes, it should return to normal.
Viewfinder Indication
: 3-point AF Frame (p.34)
: Spot Metering / Focusing Area (p.56, 59)
: Shutter Speed (p.42, 45, 47, 49)
: Aperture Value (p.42, 45, 47, 49)
: Flash Status Information (p.68)
: In-Focus Indicator (p.36)
: Exposure Compensation (p.52)
: Bar Graph(p.49, 52)
: AE Lock (p.57)
3
4
"
5
4
3
2
1
0
/
.
-
Names of Working Parts
#
$
%
&
'
(
)
*
+
,
" AF mode selector (p.33, 58)
# Exposure compensation dial (p.52)
$ Exposure compensation dial release
button (p.52)
% Auto bracketing selector (p.53)
& Hot shoe (p.68)
' Shutter speed dial release button
( Lens information contacts
) Lens unlock button (p.16)
* Preview lever (p.74)
+ Drive mode selector (p.34, 38, 39)
, Shutter release button (p.20)
- Shutter release socket (p.51)
. Up / down buttons
/ AE lock button (p.57)
0 Main Switch (p.14)
1 LCD panel (p.3)
2 Metering mode selector (p.31, 55, 56)
3 AF frame selector (p.34.59)
4 Diopter adjustment ring (p.28)
5 Shutter speed dial
Names of Working Parts
6 Battery holder release knob
7 External power supply socket (p.13)
8 Tripod socket (p.35)
9 Vertical tripod socket (p.35)
: Multi-exposure switch (p.40)
; X-sync socket
< Strap lug (p.11)
= Film holder (p.18)
> Film holder release knob (p.18)
? Mid-roll wind-up button (p.26)
@ Electronic cable release socket (p.51)
A Battery holder (p.12)
5
6
7
A
8
@
?
9
<
:
>
;
=
<
6
Although we have carefully designed this camera for safe operation, please be sure to follow precautions
given on this page.
FOR SAFE USE OF YOUR CAMERA
WARNING This mark indicates precautions that, if not followed, could result in seri-
ous injuries to the operator.
CAUTION This mark indicates precautions that, if not followed, could result in
minor or medium injuries to the operator or damage to the equipment.
WARNING
• Wrapping the strap around your neck is dangerous.
Make sure that small children do not get the strap
caught around their neck.
• Do not look directly at the sun through the camera, as
viewing the sun for an extended period may damage
your eyes.
CAUTION
• Never try to disassemble, short or recharge the battery. Also, do not dispose of the battery in fire, as it
may explode.
• Remove the batteries from the camera immediately if
they become hot or begin to smoke. Be careful not to
burn yourself during removal.
Precautions for Your Camera
7
Your Pentax camera is a high-precision mechanism. Handle it with great care.
Precautions when taking pictures
• Do not use the camera where it may come in contact
with rain, water, or any other liquid, because the camera is not weather, water, or liquid resistant. Should
the camera get wet from rain, splashing water, or any
other liquid wipe it off immediately with a dry soft
cloth.
• Do not drop the camera or allow it to hit solid objects.
lf the camera suffers a shock or impact, take it to a
Pentax service center for inspection.
• Be careful not to subject the camera to strong vibrations, shock or pressure. Use a cushion to protect the
camera when carrying it in a motorcycle, car, boat,
etc.
• Condensation on the interior or exterior of the camera may be extremely harmful to the camera mechanism as it may cause rust. Furthermore, if the camera
is taken from warm temperature to a subfreezing one
or vice versa, the formation of ice crystals may cause
damage. In such a case, put the camera into a case
or plastic bag so that temperature difference is minimized. Do not remove it from the bag until temperature has stabilized.
• Regular size color prints may cut off what appears on
the extreme edges of the film frame. Compose your
picture with a margin of safety at the edges.
Precautions for storage
• Avoid leaving the camera for extended periods in
places where the humidity and temperature are very
high, such as in a car.
• Do not store the camera in a closet with mothballs or
in an areas where chemicals are handled. Store it in
a place with good dry air circulation to prevent the
growth of fungus.
Precautions for proper care
• Never touch the shutter curtain or mirror with your
finger or any other object.
• Use a blower and lens brush to remove dust accumulated on the lens or viewfinder.
• Never use solvents such as paint thinner, alcohol or
benzene to clean the camera.
• Electrical problems may often be caused by water,
dirt or dust at points of electrical contact. Also check
for battery leakage, traces of dirt or grease, or corrosion due to salinity or gas. If you cannot correct the
problems, have your camera inspected at a Pentax
service center. Repairs of this nature are not covered
under the terms of the warranty and charges may be
assessed.
8
Other precautions
• The temperature range at which this camera functions properly is 50°C to -10°C (122°F to 14°F).
• A camera which has been submerged in water usually cannot be repaired. If such an accident should
occur, it is advisable to contact a Pentax Service
Center immediately.
• To maintain optimum performance, it is recommended that the camera be inspected every one or
two years. If the camera has not been used for an
extended period, or is being prepared for an important photographic session, it is recommended that
you have the camera inspected or test shoot with it.
• Repairs deemed necessary due to usage of this
product in an industrial or commercial application
may not be covered under the terms of the Pentax
warranty.
• The PENTAX warranty provides only for the repair of
defects in materials or workmanship. Damage of any
kind cannot be repaired at no charge under the terms
of the warranty. If the difficulty is caused as a direct
result of the product being used in conditions as outlined in this manual, charges will be assessed and a
repair quotation will be provided.
Precautions for Battery Usage
• Use six 1.5V AA size alkaline, or lithium batteries.
• Misuse of the battery can cause hazards such as leakage, overheating, explosion, etc. The battery should be
inserted with the "+" and "-" sides facing correctly.
• Battery performance may be temporarily hindered in low temperatures, but will recover in normal temperatures.
• Keep a spare battery on hand for replacement convenience when shooting outdoors or while traveling.
• Replace the batteries at the same time. Do not mix battery brands, types or old batteries with new ones. As this may
cause explosion or overheating.
9
BASIC OPERATION (PREPARATION)
10
lcon indicators used in this manual
Operation direction
Attention
Lamp blinking
I. BASIC OPERATION
(PREPARATION)
Attaching the Camera Strap
11
123
1. Use a coin or similar object to slide the clasp
in the direction of the arrow.
2. Put the clasp onto the strap lug of the camera with the arrow indication facing out, and
slide the lock plate back to the original position.
3. To remove the strap, repeat step 1.
• Adjust the length of the strap with the buckle.
• After fitting the strap and adjusting the length, pull
the strap hard to confirm that the strap has
securely attached to the camera.
• There is a pocket on the strap so you can store a
small accessory.
BASIC OPERATION (PREPARATION)
12
123
BASIC OPERATION (PREPARATION)
Loading the Batteries
1. To remove the battery holder, lift the battery
holder release knob and turn it in the direction of the arrow.
2. Load six 1.5V AA-size batteries in the battery
holder in accordance with the diagram
located in the battery holder.
3. To secure the battery holder, turn the battery
holder release knob in the direction of the
arrow.
13
• This camera requires battery power for operation. Always use six 1.5V AA size batteries.
• The ISO film speed and number of exposed frames are unchanged if the batteries are replaced.
• Keep spare batteries on hand when shooting out doors or while traveling.
• Use of the optional Remote Battery Pack 645 is recommended when the camera is used in extremely low
temperatures.
• Replace all the batteries at the same time. Do not mix battery brands, types or old batteries with new
ones.
• Remove batteries when not using the camera for long periods of time as the batteries may leak.
Battery life Battery life
[20°C/68°F] [-10°C/14°F]
Alkaline Battery Lithium Battery Alkaline Battery Lithium Battery
120 film holder: about 130 rolls about 320 rolls 120 film holder: about 7 rolls about 120 rolls
220 film holder: about 100 rolls about 250 rolls 220 film holder: about 5 rolls about 90 rolls
Bulb exposure time about 8 hours about 12 hours Bulb exposure time about 6 hours about 10 hours
• The batteries were used under our testing conditions. Actual battery life and performance may vary drastically depending on external conditions such as temperature and freshness of the battery.
• Battery performance may be temporarily hindered in low temperatures, but should recover in normal temperatures.
BASIC OPERATION (PREPARATION)
14
1 2
BASIC OPERATION (PREPARATION)
Turning the Power ON
1. Set the main switch to [ON]
• When the camera is not in use, make sure that the
main switch is OFF to prevent battery drain if the
shutter release button is accidentally pressed.
2. With the main switch set to U, an audible
PCV signal is heard under one of the following conditions.
• When the subject comes into focus.
• When the film is left only one frame.
• With the mirror lock-up function set.
15
*
*Low Battery Warning
When the batteries are nearly exhausted, the bat-
BASIC OPERATION (PREPARATION)
tery symbol e appears on the LCD panel as a
warning. Replace the batteries as soon as possible.
See page 12 for replacing the batteries.
• Even if the low-battery symbol appears, exposure
will be correct as long as the shutter can be
released. It is recommended to replace the batteries as soon as possible.
16
1 2
BASIC OPERATION (PREPARATION)
Attaching the Lens
1. Remove the body mount cap while pressing
the lens unlock button.
2. Align the red dots on the camera and lens
mount, attach the lens to the camera body,
and turn it fully to the right until you hear a
click.
17
3 *
3. To remove the front lens cap, squeeze the tabs
on the both sides in the direction of the arrow.
• With a non-autofocus lens attached, all available
functions in this camera operate except autofocus
operation.
• We assume no responsibility nor liability for dam-
ages resulting from the use of lenses made by
other manufacturers.
The camera body and lens mount incorporate lens
•
information contacts and an AF coupler. Dirt, dust,
or corrosion may cause damage to the electrical
system. Clean the contacts with a soft, dry cloth.
BASIC OPERATION (PREPARATION)
* How to remove
To remove the lens, turn it to the left while
pressing the lens unlock button.
• To protect the contacts and AF coupler of the lens
against damage after removal, be sure to set the
lens down with the mount side facing upward.
18
1 2
BASIC OPERATION (PREPARATION)
Detaching/Attaching Film Holder 645
Attaching
1. Align the red dots on the film holder knob
and film holder, then insert the film holder
into the camera chamber. Press both sides of
the film holder until you hear a click.
2. Turn the film holder knob 90° to the right.
After attaching the film holder to the camera,
fold the film holder knob into its original
position.
19
1
Detaching
1. Raise the film holder knob and turn until the
red dot markings align and a click is heard.
Continue to turn the film holder knob to the
left; the locking mechanism will release and
the film holder is now detached from the
camera body.
• When inserting the film holder into the camera
body, be sure that the film holder is inserted all
the way in order to avoid any serious damage.
• Precautions are required when attaching the 220
film holder.
BASIC OPERATION (PREPARATION)
20
Pressing the Shutter Release Button
Loading Film
The shutter release button has two positions.
Pressing it down halfway (first position) turns on
BASIC OPERATION (PREPARATION)
the exposure meter and autofocus system.
Pressing it fully (second position) releases the
shutter. When taking a picture, press the shutter
release button gently to prevent camera shake.
• Before loading a roll of film, slowly press the shutter release button to learn where the first position
is.
• The LCD indication stays on for about 10 seconds
after the button is released from the halfway position.
• The timer duration of the LCD indication can be
changed from the initial 10 seconds to 20 or 30
seconds with Pentax function No.2 See page 78.
Not pressed pressed halfway
down
(first position)
pressed fully
down
(second position)
Spool retainer (p.21)
Film winding gear (p.21)
Pressure plate
Start mark (p.22)
After loading the film, be sure to set the proper
film speed. See page 24 for setting the film
speed.
21
1 2 34
1. Install an empty to the spool retainer as illus-
trated.
2. Tear off the tape and install the spool to the
film holder so that the black inner side of the
leader must face outwards.
3. Draw the leader from the film roll, and insert
the leader paper tip into the take-up spool's
slit.
4. Slowly rotate the film winding gear in the
direction of the arrow while lightly holding
the leader paper.
BASIC OPERATION (PREPARATION)
22
56
BASIC OPERATION (PREPARATION)
Star t mark
5. Wind the leader paper onto the take-up spool
until the arrow on the leader paper aligns the
holder's start mark S and the red line.
6. Attach the film holder into the camera body.
78
7. Set the main switch to [ON]. Press the stutter
release button. The film automatically
advances to the first frame. B is displayed
on the LCD panel.
8. If A appears, it indicates that the film is not
properly loaded. Detach the film holder from
the camera and load the film once again.
23
• Always load or unload a film in the shade or by
using your body to shade the film holder.
• We suggest that you first operate the camera
without a film to become familiar with its operations.
• The film counter indication advances one each
time the shutter is released.
• With a 220 film loaded, the dot marks appear
before the arrow marking. If the dot marks align
the start mark on the film holder, the first 3 frames
will not be exposed.
• The film counter indication can be set with Pentax
Function No.7 to either count forward or backward each frame.
• If the leader paper is wound far over the start
mark S or the red line, you may lose the last
frame(s) on the roll.
• The film holder cannot be changed or removed
when the film is in mid-roll.
• 15 pictures are taken with a 120 roll film and 32
pictures are taken with a 220 roll film. The number
of pictures taken can be changed with Pentax
function No.9.
• With the main switch set to U, the PCV signal
beeps for two second when the film is left only
one frame for film depleting warning
BASIC OPERATION (PREPARATION)
24
123
BASIC OPERATION (PREPARATION)
Setting the Film Speed (ISO)
1. Set the exposure compensation dial to the ISO
position
• Turn the exposure compensation dial while holding
down the exposure compensation dial release button.
• The shutter cannot be released with the exposure com-
pensation dial set at [ISO].
2. Press the up/down button. To set the ISO for to a
higher film speed, press the Y button repeatedly
until the desired ISO appears on the LCD panel. To
change ISO for a lower film speed, press the Z
button repeatedly until the desired film speed
appears on the LCD panel.
3. After the desired film speed is set, turn the exposure compensation dial to the [0] position.
• The film speed setting range is ISO 6 to 6400 in 1/3 EV
step increments.
• You can tear off a part of the film package indicating the
type of film and speed, and insert it into the memo
holder provided on the film holder to remind you of the
film type/speed that you are using.
• [ISO] and film speed are always displayed on the LCD
panel with the main switch set to the ON position.
Unloading Film
25
123
1. After the last frame of the roll is exposed, the
camera will automatically wind the film and
stop winding as soon as the end of the leader
paper is wound to the take-up spool. G on
the LCD panel is displayed.
2. Detach the film holder from the camera.
3. While firmly holding the wound film roll, affix
the paper seal securely on the back of the
paper leader to prevent the exposed roll from
unwinding accidentally.
• Remove the film in the shade or by using your
body to shade the camera.
• The number of exposed frames on the LCD panel
disappears.
BASIC OPERATION (PREPARATION)
26
12 34
BASIC OPERATION (PREPARATION)
Unloading the Film in Mid-Roll
If you wish to remove the film before exposing all
the frames, use this function.
1. Set the main switch to [ON].
2. Press the mid-roll wind-up button fully with a
fine-pointed object. The film will wind completely.
3. Before detaching the film holder, check that
G is displayed on the LCD panel.
4. While firmly holding the wound film roll, affix
the paper seal securely on the back of the
paper leader to prevent the exposed roll from
unwinding accidentally.
• The number of exposed frames on the LCD panel
disappears.
• When removing the film from the camera, protect
it from direct sunlight.
Installing the Eyecup
27
123
Two types of eyecups, a standard and a larger one
are provided as accessories; they may be utilized
according to a given situation. The larger is constructed of rubber and designed to fit close to the
face for easy shooting.
To install
1. The standard eyecup may be easily removed
from the viewfinder by rotating the cup to the
left.
2. To install the larger eyecup: match the eyecup pin with the eyepiece hole.
3. Turn the fixing screw to the right with a coin
or similar object.
• When using accessories such as the Refcon-
verter 645, remove the eyecup first.
• When turning the fixing screw with a coin, a large
diameter coin is recommended to use. A small
diameter coin touches the glass part of the eyepiece and causes scratching the eyepiece glass.
BASIC OPERATION (PREPARATION)
28
BASIC OPERATION (PREPARATION)
Aim the camera at a bright subject. While looking
through the viewfinder, turn the diopter adjustment
ring to the left or right until the autofocus frame
l appears in the sharpest focus.
Adjusting the Viewfinder Diopter
• The diopter adjustment range is +1.0D to -3.5
(per meter).
-1
m
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