Mamiya PRO 645, 645Pro, M645 Pro Instructions Manual

Instructions

Congratulations on your purchase of the Mamiya 645 PRO

Mamiya pioneered the 6x4.5 film format and introduced the world’s first 645
SLR in 1975. The 645 PRO is the latest masterpiece in this series and
incorporates all the latest mechanical, electronic and optical advances. Its

external appearance, too, has been modernized and its ergonomic design
further enhanced.
We are sure that you will enjoy the many advantages this camera and its
accessories offer and want to particularly mention:
The 645 PRO has a built-in self-timer (delayed shutter release) which will also
facilitate time exposures. Attaching special leaf shutter lenses will automati­cally set the focal plane shutter to

1/8

sec. Heavy duty gears connect to the

improved Power Drive Grip WG401. This grip also

automatically

cocks

the lea

f
shutter lenses and permits remote control.
The AE Prism Finder FE401, specially created for this camera, automates
exposure and shows LED safety signals. 35mm film holders now come with
panoramic adapters. A super fast 300mm f/2.8 APO lens was also designed
for this camera.
We are convinced that your camera will serve you well, because we have

designed it for heavy professional use. However, we ask you to please read
all operating instructions carefully before you put your equipment to work, in
order to ensure proper operation and maximum results.

This manual covers the
basic camera. Sepa­rate instructions are
supplied with all sys­tem accessories, in­cluding lenses,finders,
film holders, etc.
For additional informa­tion please feel free to
contact your author­ized Mamiya dealer or
the Mamiya importer in
your country.

1

Special

Features

of Mamiya 645

PRO

....................3

Names

and

Function

of Parts

..................................7

Attaching and Removing Lenses

.........................

10

Attaching and Removing Roll Film Holders

........

.11

Attaching

and

Removing

Viewfinders.................12

Attaching and Removing the Film Advance

Crank

.........................................................................

13

Inserting

Battery and

BatteryCheck

........

...............14

Shutter

Release Selector

.......................................

16

A Trial Familiarization Test

...................................

17

Film Loading

...........................................................

18

Advancing Film to the

First Exposure

................

.21

Aperture

Ring/Stop-downOperation

...................23

Focusing

................................................................

.24

Depth-of-field

.........................................................

.25

Film

Transport and

Film

Unloading

....................

.26

Using the Self-timer/Delayed Shutter Release.

.

..2 7

Multiple Exposures

...............................................

.27

Time

Exposures

....................................................

.28

Mirror

Lock-up

Photography

...............................

.29

Infrared Photography...........................................

.30

Using Flash

............................................................

.31

Using a Tripod

.......................................................

.32

Holding the Camera Steady and Securely..

........

.33

Attaching and

Removing the Neck Strap

...........

.34

Specifications

........................................................

.35

Trouble Shooting

..................................................

.37

Basic Accessories

................................................

.39

System Chart

.........................................................

.41

Storing

and

Checking

the

Camera

......................

.42

Features and specifications subject to change without notice.

2

3 x More Negative Area Than the 35mm Format
Plus

Superior Image

Quality

From Mamiya World-

Class Lenses

The

6x4.5cm

format offers approx. 3 times more image

area than the 35mm

(24x36mm)

format, Man’s vision is

horizontal and rectangular.

Film Holders are rectangular and so are most pictures in

them. The

6x4.5 format

is also large enough to be viewed

without a magnifier and its aspect ratio (horizontal

/

vertical)
is ideal, requiring minimum cropping. Mamiya’s high
performance medium format lenses assure sharpness
and beautiful color fidelity.

2

Sturdy, Versatile, Safe and Highly Reliable Body

-

Tailored to Satisfy Pro Needs

-

Introduced in 1975 to not only provide an alternative to
the 35mm format, but to afford the user with advanced
versatility given its much larger format, the Mamiya 645
Series is constantly being upgraded. Elements such as
speed and handling plus a host of other special features
have been enhanced to satisfy the needs of most de­manding professionals.

Two new convenient safety features have been added to
the 645 PRO in the form of state-of-the-art optoelectronics
which immediately identifies problems with the shutter
(i.e. when it will not release) when the AE Prism Finder

FE401 is used. Whether these malfunctions develop from
failure to draw out the Dark Slide, or if there are problems
in film take-up, the LED will indicate the source of the
trouble. With these new advancements, Mamiya believes
the most demanding pro will be more than satisfied with
the new edition 645.

Enhanced Interchangeable Roll Film Holder System

3

-

Enables Polaroid and Even 35mm Panoramic

Photography

-

The 645 PRO features an interchangeable film holder

system capable of using a far wider range of roll film

holders than before. Depending on the application, the

system can be quickly attached to or detached from the

camera, ensuring the ability to catch even fast changing

scenes. It also features fail-safe devices including, for

example, one that warns when you have failed to take out

the dark slide when the AE Prism Finder FE401 is being

used.

3

Interchangeable Viewfinders

1. AE Prism Finder FE401

The AE (automatic exposure) Prism Finder FE401 fea­tures three modes of TTL metering, including automatic
switching from center-weighted averaging to spot me-

tering. It also has a

+/-3EV

exposure compensation ad-

justment.

2. Prism Finder

PF401

The Prism Finder

PF401

is without metering electronics
and designed for manual photography mode. Both Prism
Finders show an unreversed, upright image and are ideal
for eyelevel photography.

3. Waist Level Finder N
The Waist level Finder N is desirable for low angle
photography and particularly for horizontal composition.
A self erecting hood with built-in magnifier shields

groundglass from all ambient light. A built-in sportsfinder

permits eyelevel viewing and is ideal for action photog­raphy.

Bright, Dynamic Images Visible on the Focusing
Screen

-

5 Selectable Types Available

-

The 645

PRO can reproduce bright, dynamic and sharp
images on the focusing screen, enabling optimum com­position to be obtained according to the photographic
purpose. In addition, the 645 PRO greatly enhances
focusing.
5 types of focusing screens are available to facilitate
photographing a wide variety of subjects.

6

A Comprehensive Series of Interchangeable Lenses

- Sharp Images and Outstanding Color Balance -

There are an amazing variety of interchangeable lenses
in the PRO 6 x 4.5 format series. Mamiya has concen­trated an all-out effort on the systematic production of
lenses in an effort to satisfy a multitude of needs. All
lenses are multi-coated to eliminate flare and ghosting
even under the most adverse light conditions. While the
series now also features three leaf shutter lenses, all
lenses exhibit the utmost in color balance, high

resolu-

4

tion and crystal clear definition. A feature lens is the new
300mm f/2.8 APO lens which eliminates chromatic aber-

ration and produces photos with the sharpest definition.
Given the wide variety of lenses in the 645 PRO Series,
they greatly expand the world of images that are possible.

Auto winding with the Power Drive Grip WG401

This Power Drive Grip WG401 has been specially de­signed for heavy duty, motorized operation with the 645

PRO. It also permits automatic shutter cocking of the leaf
shutter lenses and can be remote controlled. Another
feature, not available previously is the following:
When attaching a partially exposed film holder (in which
the film has not been advanced to a new frame), to the
645 PRO equipped with the Power Drive Grip WG401, a

built-in camera mechanism will automatically advance
the film to the next frame, when the shutter release is
activated, either on the camera body or on the Power
Drive Grip WG401.

8

New Automatic Leaf Shutter Lenses for added
versatility.
55mm (Wide Angle), 80mm (Standard) 150mm
(Telephoto) lenses

These

lenses are all in Seiko #0 shutter, offer the advan-

tages of syncroflash photography at all shutter speeds

1/

30,

1/60, 1/125,1/250 and 1/500sec.

The optional Power
Drive Grip WG401 will automatically cock the shutters as
it transports the film and moves the mirror.
The camera’s focal plane shutter must be set at 1/8 sec.

for leaf shutter mode operation. The leaf shutter lenses
can do it automatically.

5

A Broad Accessory System
For Specialized Applications

A useful accessory system to serve the specialized
needs of the photographer. It includes Auto Bellows and
Auto Extension Rings for close-up and copying work;
Infrared Remote Control for studio and nature photogra­phy; External Battery Case for operating in cold sur­roundings; Camera Grips for convenient holding and
more.

10

Other Features

<Mirror Lock-up>

After focusing, the

Mirror

can be locked up before making
an exposure. This is convenient when the camera is used
at slow shutter speeds and is mounted on a tripod for
telephotography, copy work, etc., since even

a very

small

amount of vibrations should be eliminated.

<Self-timer>

Self-timer for delayed shutter release. When activated it
will light a red pilot lamp in the front of the camera for eightlamamp in the front
seconds and will blink for two seconds before triggering
the shutter.

<Time Exposure>

Time exposures are made by utilizing the Self-timer and
the “B” shutter setting. A new power saving circuit design

switches the battery off and extends is life.

6

Focusing Screen N

13 Gold Plated Contacts

These contacts interface the

Aperture Ring Couping Pin

This pin

is fitted into the

Ex-

posure

Meter Coupler of the

lens, to

transmit the aperture

data

to

the AE Prism Finder.

AEPrism

Finder with the ISO
dial on the film holder and
the shutter speeds.

Hot-shoe (X contact)

A

cordless flash can be used

Battery Check Lamp

Focusing Screen Release Pin

When

you

want to change
the screen. slide this pin to
the left and

remove

the

screen.

with

this

shoe.

Lens Release Button

collar is turned to the

red dot.

Auxiliary Release Contact

When the cover is moved to
the left. the contact appears.
This contact is used

for

con-

nections of external

releases

such as a special hand

grip

and remote control unit.

Mirror

/

*

Never touch the surface of

the mirror.

Battery Check Button

LED displays the present
battery condition.

7

Finder Coupling Panel (Front)

Finder

Coupling

Panel (Rear)

Electric Contact for Film
Holder

This contact receives film
sensitivity data from the film
holder.

Film Holder Mount

Film Holder Coupling

Pin

Shutter Curtain

Exposures are controlled by
opening and closing the cur­tain

Film Holder Mounting

/

Bracket

Shutter Speed Dial Lock
Release Button

This

button is used for un­locking the Shutter Speed
Dial from an AE position.

Shutter Speed Dial

This dial

selects the shutter

speed, and switches the

op-

eration mode from AE

to

manual photography.

Neck Strap Lug

Film Advance Crank

A

Single complete turn cocks
the shutter and advances the
film for each exposure.

Multiple Exposure Lever

When this lever is set at
“MULTI”, film

is not advanced

even

when the Film Advance

Crank is turned.

thus

allow­ing multiple exposures on the
same film frame.

Tripod Socket

1/4" tripod socket. To con-

vert to a

3/8" socket, remove
the small screw in the base of
the socket. Then remove the
bushing. See page 32.

Distance Scale

The camera to subject dis­tance can be set or confirmed
with this scale.

Lens Alignment Dot
Depth-of-field Scale

Provides a quick reading of
depth-of-field for various ap­ertures and distances.

Exposure Meter Coupler

This coupler is engaged with

the Aperture Ring Coupling

Pin, transmitting diaphragm
information to the AE Prism
Finder.

Battery Chamber Cover

Battery Chamber Cover
Latch

Removing the Front Body Cap and
Rear Cover

Attaching the Lens

Removing the Lens.

First remove the Front Body Cap in
the direction of the arrow, while
pushing the Lens Release Button

8

backwards as indicated by arrow.
Rear Body Protective Cover can be
readily removed by depressing the

part

of

@

as shown in the illustration.

Line up red Lens Alignment Dot

@

against red camera Alignment Dot
(C) and gently insert the lens into the
camera body. Then turn the lens
clock wise, as indicated by arrow,
until it clicks into place. Make sure
that the Aperture Ring Coupler Pin
is engaged with the Exposure Meter
Coupling Pin @, which sticks out
under the

Mamiya name plate of the

camera.

While pushing lens release button back­wards, turn lens counterclockwise.
(Same procedure as removing

body

cap).

*

When the Aperture Ring Coupler Pin is engaged

by the exposure meter coupling pin lever, F/stop
data is conveyed to the AE Prism Finder.

10

Attaching the Roll Film Holder

Removing the Roll Film Holder

*

Remove the Roll Film Holder

Cover.

1. While spanning the Roll Film Holder

between your thumb and middle fin­ger, holding it on the rubberized fin­ger rests, carefully align its Film

Holder Mounting Bracket with the
corresponding center clip of the
camera body.

2. While keeping this alignment, press
the upper part of the Roll Film Holder

against the camera body, so that it

clicks into place by engaging the

spring loaded twin camera catch.

1. Insert the Dark slide

into

the slot

marked by White Lines on the side

of the holder.

2. Push the lower one of the Film
Holder Detaching Lock Release
Button (A) downward, while simulta­neously pushing the Film Holder
Detaching Button @I inward.

*

If the

Dark

Slide is not inserted,
the safety lock will prevent the
holder from being removed.

*

The Dark Slide can be inserted
in the Roll Film Holder up to the
Green Line, marked on the slide,
without affecting the image.

Green Line

11

Attaching the Finder.

Removing the Finder

The same procedure applies to all
finders. The illustrations shows
the AE Prism Finder

FF401.

Lift the Upper Cover from the camera
body.

Insert the Attaching Latches (A) of the
finder into the Finder Coupling Panel
(B) in the front wall of the body. Press
the finder down until the rear latch
locks securely in place.

Spanning

the finder with your fin­gers, push the button on its right side
marked with a downward pointing

arrowQ,downward,

while pushing

the other button, on the left

side@,

inward.

12

Removing the Crank

Push

the

lock Lever (A) on its bottom

in a forward direction as far as

it

will

go (see illustration).

Attaching the Crank

With the flat part, having a White You may choose six different crank
Index Line, on top, line the Crank up

starting positions to suit

your

prefer-

against its mounting plate on the side

ence.

The orientation of the crank

of the body and push Film Advance

proper against its base, before it is

Crank Lock Lever backward.

attached to the camera, will be

maintained when the entire assem­bly is locked into place.

13

Inserting the Battery

The camera will not function without a battery

The camera will not function with­out a battery

With your fingernail, pull the Battery

Chamber Cover latch,

on the bottom
of the camera body, as indicated by
the arrow in the illustration. Lift the
cover off. The camera requires a 6V
alkaline, silver oxide or lithium bat­tery. It is a good idea to wipe the
battery terminals before insertion to
assure proper contact. Observe po-

larity. + position is marked in battery

cavity.

InserttheOsidefirstatasteep

angle and then push entire battery
into place, making sure that the lift
ribbon wraps around battery. Close
cover by inserting twin-prong end first
and pushing it down.

*

Be particularly careful not to let

the lift ribbon cover

theOterminal.

Checking Battery

Press Battery Check Button “B.C.”
(A) on lower front of the camera.
Battery Check Lamp (B) on top op­posite side should light. Bright light
indicates good condition. Blinking
light means replace battery. No light
means battery is dead or improperly
inserted.

14

Important:

1.

The sealed, new battery which is
supplied with this camera may have
been subject to storage conditions
which have reduced its service life.
Therefore it is desirable to replace it

with a fresh battery as soon

as

pos-

sible.

2. Carefully wipe the battery con­tacts before inserting into the cham­ber. Failure to do so may result in
poor electrical contact and conse­quent malfunctioning of the camera.

3. Always remove battery when
camera is not used for a while. Al­ways carry spare batteries.

4. Battery life differs, depending on
type, age, storage condition, ambient
temperature, frequency of

use

etc.

Battery strength will be indicated

by whether the light:

Glows . . .

..Battery

strength is suf-

ficient.

Blinks

. . . ..

Battery

capacity has

dropped below the al-

lowable level. (Replace

the battery.)

Does not light

. . . . ..

The

camera

will not work. (Replace
the battery.)

15

For normal operation set the White
Dot of the Shutter Release Selector

(A) against the White Square Dot

Cl.

When set to the Red Dot 0, the
Release Button is locked.

*

Select this mode if the camera

will be idle for a period and to

prevent accidental shutter re­lease. Also when the Power Drive
Grip is used.

When set to the yellow clock symbol

0

the self-timer is operative. See

page 27 and 28 for further instruc-

tions.

Operating

the shutter

Release

Button

1. The Shutter Release Button

@

functions in two steps. Gentle pres-

sure will light the metering informa-

tion display if the AE Prism Finder is

used. Continued pressure will re­lease the electromagnetic shutter.

2. If the film is not completely ad-

vanced, if the Dark Slide is not with-

drawn or if the battery is dead, the
shutter will not function, even when

the Shutter Release Button is

pressed. This will also be the case if

the Shutter Speed Dial is set to “A”

or

“AEL”

when the AE Prism Finder

is not attached.

3. After releasing the shutter, the

Film Advance Crank will automati-
cally unlock and be ready to advance
the film.

16

1. Attach the Roll Film

Holder to the camera body.

2. Pull out the Dark Slide
and place it into its Storage
Slot.

3. Set the Shutter Speed
Dial to any other position

than ”A” or ”AEL”.

When the

AE Prism Finder is not

mounted on the camera, the
shutter will not release if the

Shutter Speed Dial is in the
“A” or

“AEL”

position.

*

When only the body is tested, the familiarization

checkout can be made either in the “MULTI” or

0

(normal mode).

4. Set the Multiple Expo-

sure Lever on the body to
the “MULTI” position.

5. Set the Shutter Release

Selector to

“0”

(normal
mode), and press the Shut­ter Release Button.

6. After the shutter has been

released, advance the Film
Advance Crank one com­plete revolution and the next
frame will be ready.

____~~~

The empty film spool included with the film holder

is
supplied with a vinyl tube. When placed in the take-up
compartment it engages the film sensor and makes
the holder function as if it is loaded with film. Please
remove the tube after your test.

17

1. While pushing the Back Cover
Lock Release Button (A) downward,
press the Back Cover Opening

But-

ton, and the Back Cover will open.

When you load film

for

the first time,

remove

and discard the protective

paper cover which is attached to the

in the

roll

film holder.

2. While squeezing in on both sides
of the Release Latch

(A)

pull the Roll

Film Insert out of the camera body.

At that time,

move

the empty spool

in the upper part down to the lower

spood

compartment.

18

3.

Align

the right-hand side of this
empty spool with the lower Spool
Stud (A) (convex). Slide the spool
into position making sure that the
left-side of the spool is properly held
by the Spool Clip.

4. In the same manner, insert a roll
of film in the upper compartment. At
that time, check that the film leader
paper is set as shown in the photo
above. (The leader paper inside is
facing outward on the pressure plate.
Note that the film direction is wrong if

the leader paper is facing inward.)

5. Pull out some of the leader paper.
Insert the tip of the leader paper into

the slot of the lower Take-up Spool.

19

Gently rotate the take-up spool as
shown in the photo until the start
mark on the leader paper is aligned
with the start mark

(A)

on the spool

clip.

*

Correctly align the start marks
with each other, making sure that
the film feeds properly. When

im-

proper

feeding occurs, the proper
number of exposures may not be
taken.

*

Avoid exposing the film to di­rect sunlight when inserting or
removing film.

Inserting the Roll Film Insert

Insert

the loaded Roll

Film

Insert

into the holder, the

film

roll on top,

while squeezing on both sides of the

Release Latch (A) as shown in illus­tration. Make sure that is been
properly seated and is locked in
place. Then close cover by firmly
pressing its top against the Roll Film
Holder.

*

To close the Back Cover, firmly

press the top of the

back cover on

both sides.

Film Speed

(ISO)

Dial

Each film holder has this important
feature. It electronically interfaces
the film holder with the AE Prism

Finder, the focal plane shutter and
the lens diaphragm, for exposure
automation.
This eliminates the need of having
to manually reset the meter, every
time you change film holders loaded
with different films. Therefore make
it a routine to always set this dial
with the speed of the loaded film.

The Memo Clip on the back of the

Roll Film Holder Cover accepts the
box top of the film carton and can
also be used for other reminders.

Color Codes

Attach the loaded Roll Film Holder

to the camera. Remove Dark Slide

and store it. Turn the Multiple Expo­sure Lever (A) to its normal position,
White Dot against White Square.
Turn the Film Advance Crank until it
stops. The number “1” will now ap-

pear in the Film Counter Window.
The Focal Plane Shutter and Mirror
are now cocked and the camera is

ready for the first exposure.

Set the desired shutter speed against
the white index line (A) on the Shutter
Speed Dial.

1.

At the "A" and

"AEL"

settings, the
ShutterSpeed Dial is locked between
these two positions.

2. To release this lock, turn the Shut­ter Speed Dial while pushing the
Lock Release Button (B).

3. At all other settings the dial can be
rotated freely and each speed
number will click into place.

1. full seconds. All other numbers
are fractional seconds.

(i.e.

30 = 1/

1/

30 sec.)

2. The yellow B indicates Bulb. At
thissettingtheshutterremainsopen
as long as the release is pressed.

3. The red 60 (1160 sec.) reminds
you that it is the fastest permissible
shutter speed setting when using
electronic flash.

21

4. “A and

“AEL”

explained

“A

(auto exposure) and

“AEL”

(auto

exposure lock) setting

must

only be

used when the AE

Prism

Finder is

attached to camera.

1.

If

it is not attached and the dial is

set to either of these positions, the

shutter release will not work.

2. If it is not attached and the

Self­Timer is activated, the Pilot Lamp
will

Iight for 10 seconds

but the shut-

ter will again not release.

If the Shutter Speed Dial is set

be­tween click stops either the higher or
lower exposure speed may result.

22

Set the desired f/stop on the Aper­ture Ring (A) by aligning the f/number
with the red reference dot

(B)

in the
center of the Scale Ring. The Aper­ture Ring has a click stop for each

f/
stop. In-between clicks can also be
used.

The effect the set f/stop will have

upon the picture area can be con-

firmed on the Finder Screen.

Move the AM Lever on the lens so
that “M” becomes visible - the lens
then can be stopped down to the
preselected aperture.

*At

position “A”, the lens is al­ways stopped down only when
the shutter is being released with
the aperture being open.

*

During normal photography,
set the AM Lever so that “A” is
visible. At

“M”,

focusing will be a
little difficult.
* When using the AE Prism
Finder, be sure to set the AM Le­ver on “A”; otherwise, correct
exposure cannot be obtained.
*When aperture has been con-

firmed, be sure to reset the AM

Lever to “A”.

See “Depth-of-field” on page 25.

23

While looking through the viewfinder,
turn the lens Focusing Ring until the
most important subject part appears
sharp and clear.

Focusing with the Standard Focusing Screen N Type E

1.

The camera comes equipped with
a bright, Type E, RangefinderlMi­cro-prism Focusing Screen. It fea-

tures a center, split-image

range­finder spot and the subject is in
sharp focus when the split images
combine into one.

2. The microprism ring around the
split-image center further facilitates
focusing. The microprisms disap-

pear only when the subject is in
sharp focus.

3.

The rest of the ground glass area

can also be used for focusing.

*

Interchangeable Focusing

Screens

There are four additional focus­ing screens available for special­ized applications. They are easy

to interchange and come with in-

structions.

24

Reading the Depth of Field Scale

Depth of field is defined as the zone

of sharpness before and behind the

plane of focus. It depends on cam-

era subject/distance, focal length of

lens, aperture setting and distance

the lens is focused at.

In

addition

to visual observation, the

Depth of Field can be determined by

using the Depth of Field Scale on
each lens. f/stop numbers appear
on both the right and left side of the
red index mark in the center of the
scale ring. Simply read the figures

which appear above the f/stop num-

bers on the distance scale of the
Iens.

For example, with the

80mm

f/2.8N
lens focused at 3m and the aperture
set at f/22, the depth of field scale
indicates that the

zone

of sharp

fo-

cus will extend from

about 2m to 6m.

25

1.

Giving the Film Advance Crank
one complete turn, will cock the
shutter and mirror and ready the
camera for the next exposure.

2. When the film is completely ex­posed (15 exposures on

120, 30

on
220 film), the crank stop will disen­gage. Continue turning until the pa­per trailer is completely wound onto
the take-up spool. (About five turns
after

the

last exposure.)

*

Move the empty spool from the

top to the lower (take-up) com­partment, ready for loading the
next film roll.
*

Never load, unload or handle

film in direct sunlight.

3. Open the Back Cover. and

re-

move the

Roll

Film

Insert. The Expo­sure Counter will return to S (start)
automatically.

4. Pull the Spool Clip on the roll film
insert out to remove the film.

5. Remove the film from the roll film
insert;

make sure that the film on the
roll does not loosen, and seal imme­diately.

26

To use the Self-Timer, set the Shut­ter Release Selector to

0

and press

the Shutter Release Button. The

Battery Check Lamp will light for 8

seconds and blink for 2 seconds,

whereupon the shutter will go off.

*

After using the self-timer mode,

be sure to return the Shutter

Re-

lease Selector to the White

Square. (Normal mode.)

+ To override the self-timer, after

having pressed the release, move
the selector back to the white
square.

*The Self-Timer can also be
overridden by inserting the Dark
Slide into the Film Holder or set­ting the camera Shutter Speed
Dial to “B”.

Aligning the white dot of the Multiple
Exposure Lever with the yellow
“MULTI” square, disengages the
multiple exposure prevention
mechanism, and the film will not
advance after an exposure is made
and the Film Advance Crank is
turned. However, the shutter will be
recocked,

thus making multiple ex-

posures possible. In this mode the

Exposure Counter will not advance.

27

*

To override the multiple expo-

sure mode or to return to normal

operation, be sure to return the

lever’s

White Dot against the white
squareandthenadvancethefilm.
(If you forget you will continue to

make multiple exposures on the

same frame.)

For time exposures set the Shutter
Release Selector to

0,

the self-

timer mode, and set the Shutter

Speed Dial to

“B”. Press the shutter

release and both mirror and shutter

will stay open until the shutter re-

lease is pressed again. You may
also use a cable release together
with the cable release adapter. (The
battery circuit will automatically
switch off to save power.)

*

“B” can be terminated by shift­ing the Shutter Release Selector
from $) or the Shutter Speed
Dial from

“B”.

28

This is an important feature when

the tripod mounted camera is used

at slow or long exposure times and
particularly also with use of long
telephoto lenses. It eliminates the
possibility

of

even

the slightest “mir-

ror

bounce ”which may affect image

sharpness.

Move the Mirror-up Lever to the
yellow "M.UP" square, after you have
composed and focused your pic­ture. This will raise the mirror and
the viewfinder image will be blacked
out.

After use,

return

lever to normal

(white square) position.

*

When using the AE Prism

Finder, set the Shutter Speed Dial

to “AEL”. Press the shutter re-

lease halfway and then lock the
mirror up. If set to “A” and the
mirror is locked up,

“LT” (long

time) will appear in the finder dis-

play and correct exposure can-

not be obtained.

* When using a Leaf Shutter
Lens, be sure to read the instruc-

tions accompanying it.

29

Infrared light rays - being of longer
wavelength - focus at a slightly dif­ferent plane and require the follow-

ing adjustment:

1. Note

the Red Index Mark against
which you read your distance scale.
The red infrared index mark is slightly
to its right.

2. After focusing in the usual man­ner, read the distance scale and
move it to the right to line up with the
infrared index mark.

* For proper filter and exposure

information be sure to consult
the instructions enclosed with in­frared film.

*

The A300mm f/2.8 APO lens for

645,

being also corrected for in­frared light rays, does not need
an Index Mark for infrared.

30

<Caution>
When using the Hot-shoe,

be sure to put an appropri-

ate Safety Cover over the

X­sync terminal so that you
won’t

receive a

high voltage

electric shock if the terminal

is accidentally touched. (A

Safety Cover is put on the

X­sync terminal when the
camera leaves the factory.)

1. When using an electronic flash,

*

Do not use a flash unit specifi-

plug the synchronization cord into

cally

dedicated for another

cam-

the Sync Terminal and set the Shutter

era. It may

damage

your 645 PRO.

Speed Dial to 1/60 sec.

or slower.

*

If you use a flash unit whose

flash duration is slower than 1/

*

The Mamiya 645 PRO has an X-

sync terminal.

Attach a shoe-mount flash to the
hot-shoe of the camera or the Left
Hand Grip GL401 (optional).

1000 sec., set the shutter speed
dial to 1/30 sec. or slower.

Flash Synchronization Chart

~~~

31

2. For MF and M bulbs, set the
Shutter Speed Dial to 1/30 sec.

or

slower for the MF type, and

1/15

sec. or slower for the M type.
* When using a flash, carefully

read the instructions that come
with the flash bulbs or flash unit
to check for appropriate shutter
speeds and to avoid malfunctions.

The Mamiya 645 PRO Tripod Socket
accepts a standard

1/4

"

tripod

mounting

screw. For use with tri-

pods having 3/8

"

mounting screws,
first unscrew the small black philips
head retaining screw in the

center

of

the tripod socket. Then remove the
1/4” bushing with a thin coin. To re

-

install the

1/4”

bushing, reverse the

process

32

Eye-level Operation

Waist Level Operation

Hold the camera as shown in the
illustration, with its base resting

on
your left hand, the right hand sup­porting it from the side and top.
Press

both elbows against your body
and activate the shutter release with
a smooth, steady stroke.

For waist level operation,

it

is desir-

* Handholding the camera is

able to have the Neck Strap at-

even

easier

using

the Power Drive

tached

and adjusted for your size.

Grip WG401 or kept Hand Grip

During exposure keep it taut and

GL401.

press the camera firmly against your
body.

33

Attaching the Strap to the Camera

1. While pushing down, pull out the

2. Place the hole of the strap

fas-

Neck Strap Fastener (A) of the at-

tener

(A)

over the Neck Strap on the

taching

clip.

camera body as illustrated, and pull
until it clicks and locks into place.

Removing the Strap from the Camera

With your fingers, puII the Neck Strap

Fastener

(A)

of the attaching clip up-

ward and push

part (B)

in the direc-

tion of the arrow. The strap can now

be removed.

* When attaching the Strap to the
Neck Strap Lug on the side of the
camera with the Film Advance
Crank, insert the neck strap fas-

tener (A) into the lower part of the

double slot.

34

6 x 4.5cm

electronic focal-plane shutter SLR

Polaroid pack film (Polaroid

100,

600 series)

135 roll film in film cartridge

Film loading

Daylight loading-interchangeable film holders with film speed dial available

Standard lenses

..___

Lens

mount

M645 bayonet

mount

(applicable to all

M645

lenses)

Shutter

Moving coil, electronic controlled focal-plane shutter

Shutter speed

(Manual) 4 sec. - 1/1000 sec., B (T)

(Auto) 8 sec. -

1/1,000

sec. (when the AE Prism Finder FE401 is used)

Shutter release

Electromagnetic release.
Selectable release lock or self-timer mode.

Mirror

lock~up

capability.

Viewfinder

Interchangeable (Waist Level Finder N, Prism Finder

FP401

and AE Prism Finder FE401

(Viewfinders for the M645 Super can be used)

Focusing screen

Fresnel

Lens, accessory screens available

(Same as the M645 Super)

Field of view

Film transport

Exposure counter

Multiple

exposure
Depth-of-field
Self-timer

Single turn winding by Film Advance Crank

AC401.

Variable crank start

position@

(6 positions).

Interchangeable (Power

Drive

Grip WG401 and Power Drive Grip N

).

..___

Progressive type: automatic reset.
The counter for 120 and 220 film will be automatic.

..___

Activated by the Multiple Exposure Lever.
Depth-of-field Scale provided on lens

:

Electronic LED display Lights for 8 seconds, flashes for 2 seconds, before shutter release.

j

Has manual override.

Battery check

Control and Electronic Cable Releases.

The-Battery Check Button, indicates residual battery capacity in 3 stages.
Time (T) photography can be taken.

..

shoe, Flash synchronization at

1/60 sec.

or slower speeds

Back cover
Power supply

Others

Dimenslons & Weight

With Neck Strap.

Body with 120 Roll Film Holder HA401 124mm (W) x102.5mm (H)

x

124mm (D)

980g

With Waist Level Finder N,

80mm

f2.8N

124mm (W) x106 mm (H) x

158mm (D)

1,345g

With Prism Finder FP401, 80mm f/2.8N

124mm

(W) x128 mm (H) x

170mm

(D)

1,530g

With AE Prism Finder FE401, 80mm f/2.8N

124mm

(W) x135 mm (H) x 170mm

(D)

1,545g

With Power Drive Grip

AE Prism Finder FE4

0

WG401,

1, 80mm f/2.8N

172mm (W) x135 mm (H)

x

170mm

(D)

1,800g

(Without Battery)

36

*

If the camera should fail to function properly,

please check the following:

1.

The Shutter Release Button does not move.

Push the Battery Check Button.

If the lamp does not light, check:
Is a Battery in the camera?
If yes, is it correctly inserted? (Polarity)
Is it dead?

If the lamp does light, check:

Has the Film Holder Dark Slide been pulled?
Is the Shutter Release Selector in the locked
(Red Dot) position?
If so, move it to the White Square and try again
Is the Shutter Speed Dial in the “A” or

“AEL”
position?
If so, turn to other setting and try again.

2. The finder is black

or

very dark.

Has the Lens Cap been removed?
Is the Mirror-up Lever in the

“M.UP”

position?
If so, turn the lever to the White Square.
Is the “AM” setting on the lens at “M" (Depth of
Field Preview)?
If so, move it to “A”.

3. The Roll Film Holder cannot be removed from the
camera body.

Insert the Dark Slide.

4. The developed film has fewer exposures than

specified.

Most likely

the

Start Mark had not been aligned
properly when the film was loaded. (See load
ing instructions page 20

)

5.

The Film Advance Crank continues to turn and does

not stop.

Was the Roll Film Insert placed in the Roll Film

Holder?
Was the empty fim spool left in the upper
compartment?

37

Things to Watch

*

When using the AE Prism Finder FE401

When using this finder it is imperative that the

Film Speed Dial on the Roll Film Holder is prop-

erly set for the ISO number of the loaded film, as

it interfaces with this finder. If not done, wrong

exposures may result.

*When the mirror is locked in the up position.
* The Focal Plane Shutter Curtain may be dam-

aged if the camera faces strong light sources,
especially the sun. Return mirror to normal po-

sition or cap lens to prevent such damage.

*

Cold Temperature Photography

a. Use a fresh lithium battery

b. Utilize the External Battery Case accessory.

(Permits battery to be placed inside clothing).

Batteries that fail at low temperatures may still
be used at normal temperatures. However fre­quent temperature changes shortens

battery life.

c. Avoid sudden temperature changes when going

indoors, to prevent moisture condensation on

camera and

lenses. (Also important for film

protection).

38

The AE Prism Finder FE401

The Mamiya AE (Automatic Exposure) Prism Finder

FE401 pentaprism guarantees a true, upright image
and features built-in electronic shutter control which,
ensures aperture-priority, TTL automatic exposure
metering while in the A or AEL mode.

< 3-Way

Metering System>
The FE401 comes with three metering modes: average
metering

(AV), spot metering (SP), and AV-SP metering
capable of automatically selecting AV or SP according
to subject conditions.
The LED display in the viewfinder indicates correct
exposure

If you forget to extract the Dark Slide when the finder is
being used with the 645 PRO, an LED will flash a
warning.

The Power Drive Grip WG401

The Power Drive Grip WG401 is integral with the
winder and hand grip, enabling quick and continuous
exposures to be taken: frames can be advanced (about
2

frames/sec.).
Usable with any of three recently developed leaf shut­ter lenses, it

can

be connected with the

lens and

winder

with the Grip Connecter

PL401,

thus automatically

interlocking it with the lens.

39

Roll Film Holders

Interchangeable Lenses

120 Roll Film Holder HA401

Wide-angle Lenses

:

35mm

f/3.5N,

45mm

f/2.8N,

220 Roll Film Holder HB401

55mm

f/2.8N

135 Roll Film Holder

HC401

Telephoto Lenses

:

150mm f/3.5N, A150mm

f/2.8,

(with Panoramic Adapter)

210mm

f/4N

Polaroid Land Pack Film Holder HP401

ULD300mm f/5.6N, A300mm

f/2.8AP0,

500mm f/5.6

Standard Lenses

:

80mm f/1 .9N, 80mm f/2.8N,
110mm

W2.8N

Zoom Lenses

: Zoom 55

-

110mm f/4.5N,

Zoom ULD105 - 210mm f/4.5

Special Effect Lenses:

Fish-eye ULD24mm f/4,

Shift

50mm

f/4,

Macro 80mm

f/4N

Soft

145mm

f/4

Leaf Shutter Lenses

:

A55mm

f/2.8N/L,

A80mm

f/2.8N/L, A150mm

f/3.8N/L

TeleConverter

:

2 x Tele-Converter

40

When the camera is not used for a long period of time,
remove

the battery and any film from the camera.
Avoid storing the camera for prolonged periods of time
in a damp or salty atmosphere. (Color film should be
stored at the manufacturer’s recommended tempera­tures.)

Since cameras are precision instruments, avoid shocks

and rough handling.

When camera and lens are stored for a long time,
periodically exercise the shutter(s) at various speeds

and also turn the lens diaphragms.

Cleaning

Never touch the surface coated mirror. Clean dust
particles with a blower and optical surfaces with lens
cleaning tissue and lens cleaner.

Periodic Check

Periodically check the camera to make sure that it is in
good working order, especially before an important
assignment. Check the battery, flash synchronization,
mirror and shutter movement, film advance, diaphragm
operation, etc.
Should any malfunction occur or if the camera has
been dropped, jarred or become wet, do not attempt to
fix it yourself but send it to the Service Department of
your Mamiya distributor.

42