Mamiya M645 Super User Manual

Thank you very much for your purchase of the M645
Super.

The Mamiya M645 Super is the latest 6 x

4.5cm

medium
format SLR. This camera has been developed through
Mamiya’s expertise in the most advanced technologies
and offers the quality of a large negative as well as the
maneuverability and operating convenience normally
found only in smaller cameras.
In order to satisfy the demands of the professional photo­grapher there is a broad assortment of accessories availa­ble the AE Prism Finder and its 3-way metering system,
automatic Power Drive and a

Polaroid® film back are rep-

resentative samples of the

M645

system accessories that

make it possible to further expand the scope of your photo­graphy.

You can combine various types of system accessories to
suit your applications, and enjoy your photography.

For instructions of other system accessories, please refer

to the respective instructions supplied with these items.
To ensure proper operation of your

M645

Super, please
be sure to read this Manual carefully before using your
camera.

Special

Features of Mamiya

M645

Super

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

2

Names and

Function of Parts

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

5

Atlaching and Removing Lenses

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

8

Attaching and Removing Roll

Film

Holders

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

9

Attaching and Removing Finders

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

10

Attaching and Removing the Wind-up Crank

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

11

Inserting Battery and Battery Check

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

1 2

Operation

Test

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

13

Film

Loading

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

14

Advancing Film to the First Exposure

.......................... 17

Shutter Speed

Dial

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

18

Focusing

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

19

Aperture

Ring/Stop-down

Operation

20

Shutter Release Operation

_._...._......_.......................,....

21

1

Methods of Holding the Camera Securely

.._.............. 22

Film Transport and Film Unloading

.._...._._......_.....

23

Depth-of-field

24

Using

Flash

. . . . . . . . . .

26

Multiple Exposures/Infrared Photography

.,.,.,..,_._...._._

27

Time Exposures/Mirror Lock-up Photography

.,......,_,_ 28

Using a Tripod/Using Delayed Shutter Release

,_,....,. 29

Handling

Precautions

.._._...._._............................

30

Storing

andCheckingthe

Camera

31

Specifications ..,..,.,.,..,.,.,..,.,.,..................,.,.,,,,,,,,,,,,,,,,,,. 32

1

1

3 Times More Area than 35mm Format, Less

Waste of The Negative Area:

The 6 x

4.5cm

format offers approx. 3 times more area
than the 35mm (24 x 36mm) format. The horizontal and
vertical ratio of the area is proportional to the size of most
printing papers, so there is little waste of the negative
area. For beautiful color enlargements, the 6

x 4.5cm

is

the ideal format.

2

Versatile, Light-Weight Body:

The M645 Super is a compact, light-weight, all-round
camera designed to handle as easily and speedily as a
35mm SLR.

Its size and weight are well suited for action photo-

graphers.

, Interchangeable Film Holder System Enables

Polaroid Photography:

The

M645

Super features an interchangeable film holder

system. A range of film holders can be used depending on

the application.

A 35mm

Roll Film Holder, “Polaroid” Land
Pack Film Holder as well as 120 and 220 Roll Film Holders
are available. This system can be quickly attached to the

camera, ready for the first photograph. Also, fail-safe
devices are incorporated including a release

lock

and

removal lock, using a Dark Slide.

4

Unique

Moving Coil Electromagnetic Release

and High-Precision Electronic Shutter:

The M645 Super

features a

revolutionary, quartz-controlled
moving coil electronic shutter which conserves battery
consumption.
The moving coil is operated

twice

by an electronic circuit,

to

acuate

the electromagnetic release.
This unique method allows high-precision shutter control
as well as wireless remote control.

5

Large, Bright Focusing Screen N, to satisfy your
Applications:

It becomes easy to obtain optimum results when looking
through the large, bright viewfinder. Five types of Focusing
Screens are available to facilitate photographing special
subjects.

2

Interchangeable Viewfinders for All Applications:

l

Lightweight, Waist Level Finder N

The waist level finder hood can be opened and closed
with a single action. Lifting the magnifier upright com­pletely seals the hood, making the viewfinder ideal for
outdoor photography, close-ups and copying. The
sports finder which is located outside the hood is con­venient for fast action photography.

l Prism Finder N suitable for snap photography

The prism finder is well-suited for action photography

providing an unreversed, eye-level image. Horizontal or

vertical photographs are both easy with this finder.

. 3-way

TTL metering

AE Prism Finder N

This

AE Prism Finder N features 3-way metering which
can automatically switch from center-weighted averag­ing metering for general photography, to spot metering

which will emphasize a specific photographic point or
you can designate either of these metering methods

according to photographic conditions. These metering
systems facilitate AE Photography under difficult

conditions, such as adverse lighting. Further a

*3

EV

exposure compensator expands the range of exposure
control.

7

A wide Variety of Multi-coated Lenses for Clear,
Sharp Images:

Mamiya-Sekor lenses have achieved world-renown

rec­ognition as professional lenses of exceptional contrast,
high resolution, clear definition and excellent color
balance. The lens series includes wide-angle to telephoto,
and special applications lenses. All of these lenses are
multi-coated lo

eliminate

flare and ghosting, even under

adverse lighting

conditions.

8

A Broad Accessory System to Expand Your

Scope:

A full range of accessories are available for the

M645

Super to assist you in capturing virtually any type of
image. These accessories include hand grips for conve­nient, easy handling. auto extension rings for easy close­ups and copying, auto bellows, and infrared cordless
remote control to satisfy all photographic requirements.

Please refer to the M645 Super system chart for a com­plete listing.

3

Hot-shoe

Hot shoe type electronic flashes can be mounted.

Multiple

exposure

operation

A simple operation of the Multiple Exposure. Lever
allows you to take as many multiple exposures as you
wish, thereby making it possible lo explore new photo­graphic situations.

Mirror lock-up system

The mirror lock-up feature enables manual raising of
the mirror before the exposure is made to minimize
vibration. This provision makes clear close-up and tele­photo photography possible even at slow shutter
speeds.

4

Focusing Screen N

Viewfinder Contact

This electric

contact

is used

to

Aperture Ring Couping Pin

This pin is fitted into the

Expos

Meter Coupler of the lens, to
transmit the

aperture

data to the

AE Prism Finder.

exchange data with AE Prism
Finder.

Hot-shoe (X contact)

A cordless flash can be used with
this shoe.

Alignment

Dot/Battery

Check

Lamp

Flash Sync Terminal

A flash bulb, flash

synchro

card

Shutter Release Selector

A white square is used d

normal photography. When

dot is

indicated.

the

shutl

locked, turning power OFF.

When the

battery

is exhausted,

the mechanical shutter can be

released at

approx.

1l/60 second

when this selector is aligned

with

the yellow dot.

and optional synchro terminal
adapter

can

be connected with

this terminal.

Mirror Lock-up Lever

Neck Strap Lug

Auxiliary Release Contact

When the

cover

is moved to the

left the

contact

appears. This

Shutter Release Button

contact is

used

for connections of

external releases such as a

spe-

Focusing Screen Release Pin

When you want to change the
screen, slide this

pin to the

left

and

remove

the screen.

cial hand grip and remote

control

unit.

Lens Release Button

*Never touch the surface of the
mirror.

Battery Check Button

LED displays the present battery
condition

.

5

Finder Coupling

Panel (Front)

Finder Coupling Panel (Rear)

Electric Contact for Film Holder

This contact receives film

sen-

sitivity

data from the film holder.

Film Holder Mount

speed and switches the opera­tion mode from manual to AE
photography.

Shutter Speed Dial Lock Release

Button

This button is used for

unlocking

the shutter speed dial from an

AE,

posItion

ASingle

complete

turn

cocks the

shutterand

advances the film

for

Film Holder Coupling Pin

Guide

Film Transport Gear

Film Holder Mounting Bracket

Wind-up Crank Lock Lever
Neck Strap Lug

Multiple Exposure Lever

When

this

lever is set at “MULTI”,

film is

not

advanced even when
the Wind-up Crank is turned, thus
allowing multiple exposures on
the same film frame.

6

Distance Scale

This ring adjusts t

The camera to

subject distance

can be set or confirmed with

this

scale.

Depth-of-field Scale

effectof theaperature

settinggon

the lens, set this lever to

“MAN-

UAL”

and you can observe

the

effect through the

viewfinder.

*Normally

use

your camera in
“AUTO” position including AE
photography.

Provides a quick reading

of

depth-of-filed for various

aper-

tures and distances.

Lens Alignment Dot

Exposure Meter Coupler

This coupler is engaged with the
Aperture Ring Coupling Pin,
transmitting an f/stop number to

the

AE Prism Finder.

Battery Chamber Cover

Battery Chamber Cover Latch

coin.

7

Removing the Front Body Cap:

Turn the Front Body Cap in the direc­tion of the arrow, while pushing the

Lens Release Button

@

toward the
arrow.
*The Upper and Rear Body Protective

Covers can be readily removed.

Attaching the Lens:

Align Lens Alignment Dot @ with the
Camera Alignment Dot 0.

lnsert

the

lens into the camera body. Then

turn
the lens in the direction of the arrow
until it clicks and locks into place. Make
sure that Aperture Ring Coupling Pin
(A) is engaged with the Exposure Meter
Coupler.

Removing the Lens:

Remove the lens using the same pro­cedure as described for the Front Body
Cap.

8

Attaching

the Roll Film Holder:

Removing the Roll Film Holder:

While holding the Rubberized

Finger

Insert the Dark Slide between both

Rest

@

on both sides of the holder,

white lines I&

To remove the holder,

position the Bottom Coupler of the

push the Button

@I

away from the
holder @ properly to the Holder camera body while pressing down on
Mounting Bracket @ of the body.

the

Lock

Release Button

@

Press the upper part of the holder
together with the body until clicks.

The green line on the Dark Slide

indicates the position to which the
Dark Slide can be inserted into

the Roll Film Holder without

blocking the image.

Green Line

FIYZ

9

Attaching

the Finder

Insert the front finder mounting latch

@

into the body side slot @ as shown by
the arrows, and press the finder down

until the rear hooks latch firmly.

Removing the Finder:

Hold the Finder Lock Release Button

( 0 )

in while pushing down on the

Button (

,l

)

on the opposite side of

the finder.

*Other finders can be attached and

removed in the same procedure as

described above.

10

Removing the Crank:

Attaching the Crank:

Push the Wind-up Crank Lock Lever

Pull the Lock Lever

@j

in the

direction

@

in the direction of the arrow, pull out

of the arrow while pressing the crank

the crank to remove.

against the camera body.

It is possible to select the

start

position
of the Wind-up Crank in six different
positions. The following figure shows
the six different positions.

*For attaching and removing the

Power Drive N, refer to its instruction
manual.

11

The M645 Super

uses

one 6V silver-

oxide battery

(4SR44)

or 6V alkaline-

manganese battery

(4LR44).

Pull the
Battery Chamber Cover Latch (at the
bottom of the camera body) in the di­rection of the arrow, and the Chamber
Cover can be removed.

Battery Check

First, insert the battery 0 terminal into
the Battery Chamber and press the
battery’s @ terminal in while confirming
battery polarity. Then close the cover.

*Before inserting the battery, arrange

the battery removal ribbon correctly
passing it under, then over, the bat­tery. Consequently the battery can
be removed easily by pulling the end
of the ribbon.

When the

Battery

Check Button

@

(located on the front of the camera) is
depressed, the

Battery

Check Lamp

@

lights up. The lamp will not light if
the battery capacity is insufficient or if
the battery is inserted incorrectly.

12

Caution:

1. Carefully wipe the contacts of the

battery before inserting it into the
chamber. Failure to do this could result
in

poor

electrical contact and conse-

quent erratic functioning of the camera.

2. When the

camera

is not used for a
long period of time, remove the battery
and store it in a

cool,

dry place.

3.

Battery

life differs, depending on
battery brand, period after manufac­ture, storage conditions, temperature
during operation and operating fre­quency. Prior to use, check the battery
condition, using a battery checker.
It is recommended that you take a
spare battery with you when going out
on a photographic trip, for example.

4. This camera is designed for use
with either a silver-oxide or alkaline­manganes battery. However. the life of
a silver-oxide battery will be much

longer. The silver-oxide battery is

pre-

fered

when the AE Prism Finder is

attached.

At times it may be necessary to rotate
the film advance crank two full

turns

to

cock the shutter when an empty take-up

Operation Test

/

@I

Remove the Dark Slide

Pull out the Dark

slide

and place it

into the Dark Slide Storage Slot.

i

:

-. -_

\2

Set the Lever to “MULTI,”

Set the Multiple Exposure

Lever to

the “MULTI 0” mark position.

I

-

----

‘.

!

.3

Turn the Wind-up Crank

Advance the

Wind-up

Crank one

complete revolution.

@ll

Release the Shutter
Set the Shutter Release Selector
to the

“m

mark, and press the

button.

Loading the Film

While pushing the Back Cover Lock

While squeezing in on both sides of

Release Button @ downward, press

the Release Latch 8, pull the Roll Film

the Back Cover Opening Button

@I>,

Insert

out of the camera body. At that

and the Back Cover will open.

time, move the empty spool in the
upper part down to the lower spool

compartment.

Align the right-hand

side

of this empty

spool with the lower Spool Stud

@

(convex). Slide the spool into position
making sure that the left-side of the
spool is properly held

by

the Spool Clip.

14

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.)

Pull out some of the leader paper.

Gently rotate the Take-up Spool in the

Insert the tip of the leader paper into

direction of the arrow until the start

the slot of the lower Take-up Spool.

mark of the leader paper is aligned
with the start mark (A) on the Spool
Clip. (Correctly align the

start

marks
with each other, taking care that the
film is not rolled excessively.)

15

Insertion of the Roll Film

Insert

Memo Cllp

Insert

the loaded Roll Film

Insert
straight into the holder as shown in the
photo above. Be sure to check that the
Roll Film

Insert

has been completely

set before closing the Back Cover.

The Memo Clip on the Back Cover is
used to hold the box top of the film in
use or a piece of paper for storing
necessary data.

16

There are two methods for advanc-

ing film to the first frame.

In either case, when

loading

the film,

always align the film with its start mark.

Film Advancing after the Roll Film

Holder is mounted onto the Body:

Make sure that the Multiple Exposure
Lever @ is aligned with a white square
dot. Wind the

Wind-up

Crank until it

stops and the number 1 will appear

in
the Film Counter Window.
The shutter is now cocked and the
camera is ready for the first exposure.

Film Advancing by Film Advance

Knob of the Roll Film Holder

Check that the Dark Slide is com­pletely inserted (light blocked). When
the Film Advance Knob

@

of the Roll

Film Holder is rotated in the direction

of
the arrow until it stops, the camera will
be ready for the first exposure.

*

It should be noted that when the

Coupling Pin (refer to the manual for
the Roll Film Holder) is depressed

with the finger, the film will not stop at
the first frame.

17

i

Align

your

desired shutter speed with

the white

alignment

index 8.

*In

other

than the 0 and 0

marks, the

dial

will

rotate freely, and each shut­ter speed display will stop at the click
point.

18

.

Color

Coding

The yellow 4 and 2 represent full
seconds. and all other figures rep
resent the denominator of a frac­tion.

(Thus. 30 equals 1/30

sec.)

The yellow B represents

BULB.
When the Shutter Speed Dial is set
to

B, the

Shutter remains open as
long as the Shutter Release Sutton
is depressed.
The

red 60 (1/60 sec)

represents
the highest permissible shutter
speed for electronic flash syn­chronization.
The red 0 mark is the AE position.
and 0 is the AE Lock position.
These marks are used with the AE

Prism Finder N. (When the Prism
Finder

N

and Waist Level Finder

N

are

attached,

and the dial is set at

0

or 5. the effective shutter speed

is

1/1000 sec).
Set the Shutter Speed Dial only to
the click stop position. Using an
intermediate positions

will

result in

inaccurate exposure.

When

selecting

shutter

speed

settings
other than the C* and R marks, release
the lock by pushing the button @ in
fomt of the dial. Turn the Shutter
Speed Dial to your desired speed.

While looking through the viewfin­der, adjust the lens Focusing Ring

until the most important part of the
subject appears sharp and clear.
Extremely accurate focusing is
simplified by the split-image

range­finder spot located in the center of
the Focusing Screen. (to use,

match up the image on both sides
of the split-image.)

The split-image rangefinder spot is
surrounded by a microprism collar
which fractures the image whenever
it

goes

slightly out-of-focus. Con­sequently, this is an invaluable aid
for pinpoint focusing accuracy.
The outer ground glass ring (which
encircles the microprism collar) can
be also used for focusing.

*As an accessory, Mamiya offers

Diopter Correction Lenses which can
be attached to the viewfinders. Near
and farsighted persons will find these
accessories useful for obtaining
accurate focus.

*The Focusing Screen is interchange-

able. To change screens, refer to the
instruction manual supplied with the
screens.

19

Set the

desired f/stop

on the Aperture

Ring

@

by aligning the f/number with
the red reference dot @. (The Aperture
Ring has a click stop for each f/stop.
In-between clicks can

also

be used.)

AM (Auto/Manual) Lever

1. In normal photography, set AM
Lever so that character “A” is visible
in the lever window. If you do so,
the aperture will remain wide open,
stopping the lens down only during
shutter

operation.

2. Moving the AM Lever of the lens so
that “M” is visible will stop the lens
down to the preselected aperture,
thus making it possible to confirm
effect of the aperture through the
viewfinder.

20

1.

The Shutter Release Button @ is a

2-step

type. The release pressure
will charge halfway through the
cycle. The first step light up the
metering related display. The
second step is the electromagnetic
shutter release position. (The first
position operates only when the AE

Prism Finder N is used.)

If the film is not completely
advanced,

the

Dark Slide is not

removed or

the battery is
exhausted, the shutter can not be
released even when pushing the
Shutter Release Button.
After releasing the shutter, the
Wind-up Crank is unlocked auto­matically, making it possible to
transport the film to the next frame.

When this setting is used, the shutter
speed is always 1/60 sec. regardless
of the Shutter Speed Dial

postion.
When your camera is not in use, set
the Shutter Release Selector to the
red dot so that the power is turned
OFF.

*In

normal photography, set

the shutter
Release Selctor @ to the “NORMAL”
(white square) position.

*Note: Always make sure that the

Shutter Release Selector clicks into
position. When the battery is
exhausted

during

photography, and
the shutter can not be released, set
the selector to the yellow dot, and
you will be able to use the mechanical
shutter at 1/60 sec.

21

Attaching and Removing the
Neck

Strap

to the Camera

Eye-level Operation

No matter how carefully one focuses

the camera, if there is camera move-

ment during the instant that the shutter
is released, sharp pictures are unlikely.

To eliminate camera movement, care

must be taken regarding the method of
holding the camera and releasing the
shutter.

22

Waist-level Operation

When hand-holding the camera with
the Waist Level Finder attached, adjust
the length of the neck strap to take out
the slack and

support

the camera

firmly against your body.

Attaching

it

to

the

camera

1.

Draw out the neck strap fastener

8-G

the attaching clip while pushing it down.

2. Place the hole of the strap

fastener @

over the

lifting

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

Removing it
from

the

camera

With your finger,

pull

the neck

strap

fastener

@of

attaching clip upward and push part

(@ in

the direction of

the

arrow. The strap

can now

removed.

When attaching the strap to the lifting lug

on the side of the

camera with the Wind-up
Crank, insert the neck strap fastener @
into the lower pad of the double

solt.

1. Turn the Wind-up Crank until it
stops

(one turn), and the camera is

ready for the next exposure.

2.

After the fixed number of exposures

has been taken (15 for 120 film,

30

for 220 film), the Shutter Release

Button automatically locks, and the
Wind-up Crank becomes free. At
that time, wind the Crank until the

leader paper is completely wound
onto the Take-up Spool. (By turning
the crank 4 to 5 times after the final
frame of the film comes in sight, the
film will be wound up completely.)

3.

4.

5.

Open the Back Cover, and remove
the Roll Film Insert. The exposure
counter will return to

S

(start)
automatically.
Move the Spool Clip of the Roll Film
Insert outward to remove the film.
Remove the film from the Roll Film
Insert, exercising care that the film
does not loosen, and seal it.

23

Depth-of-field refers to the total area
(foreground and background) which
will appear in sharp focus. The area of
sharpness (depth-of-field) depends
upon the distance the lens is focused
at, the f/stop (or aperture) being used,
and the focal length of the lens.
The area that will appear sharp can be
determined

as follows:

1. Depth-of-field can be determined
by

referring

to the Depth-of-field
Scale engraved on the lens.
For example, with the 60mm

f/2.8N

lens focused at 10 ft. (3m) and

the

Aperture Ring set to f/22, the

Depth­of-field Scale reveals that every­thing from about 7ft.

(2m)

to about

20 ft.

(6m)

will appear sharp.

2. The lens can also be stopped down
to the preselected aperture for
direct viewing of the depth-of-field
by using the AM Lever on the lens.
To do so, move the lever so that “M”

(manual) is visible. When the lens
is set to “M” you can take a picture
observing the depth-of-field in the
finder.

24

The bracket of

a

handle-mount flash

unit

can

be

attached to the camera’s

tripod

socket. A shoe-mount flash can
be attached to the camera’s Hot-shoe
or the

Hot-shoe of

the

Left

Hand Grip.

*The Mamiya M645 Super has an

(1) When using an electronic

flash,

plug the synchronization cord into
the sync terminal and set the Shut­ter Speed Dial to 1/60 sec. or

longer.

Flash Synchronization

Chart

When the

Multiple Exposure Lever

is
aligned with “MULTI”, the double­exposure

prevention

mechanism is

disengaged, so that the

shutter

can

be

cocked

(and even with the Wind-up

Crank

turned) without moving the film,

making multiple exposures possible on

tile same

frame.

(When making multiple exposures, the

exposure counter

will not

advance.,

*

Remember to return the lever to the

white

square

mark position

upon
completion of the multiple exposure.
If you forget to return the lever, multi­ple exposures will

continue

to occur

on and the

next

frame.

w

hen using infrared

film, it is

neces-

reference mark of the lens. Make
the focusing adjustement by turning
the Focusing Ring slightly in the
direction of the

arrow

in the

accom­panying photograph so that the dis­tance just observed is aligned with

the

infrared

mark. Focus is now

correct

for

infrared and

you

can

release the shutter.

*For information regarding the proper

filter and exposure, refer to the data
sheet packed with the film. Always
use the appropriate filter for the lens.

sary

to

make a

focusing adjustment in
order to achieve accurate focus. This
is

becuase

the focus position of the
image deviates from normal since the
infrared ray wavelength is longer.

Focusing Adjustment Procedure:

1.

The red dot or line on the

right

side
of the lens center reference line is
the infrared mark.

2. After focusing in the

usual

manner,

check the distance on the Distance

Scale that is aligned with the center

27

To take

time exposures, set

the Shutter

Speed Dial to

"B"

and use a cable
release with a lock provision. Inserting
an optional Cable Release

Adapter

into
the Auxiliary Release Contact of camera
body, allows a cable release to be
used.

When the camera is mounted on a
tripod

for

copy

work, close-ups or tele-

photography at long (slow)

shutter

speeds, the small

amount

of vibration
due to “mirror-bounce”, which is nor­mally

of

no consequence, may cause
blurring of the image due to the high
magnification encountered in extreme
close-ups and telephotography. Mirror
shock can be eliminated by locking the
mirror in the up position before making
the exposure.

. 1. To

lock

the mirror up, move the

Mirror

Lock-up Lever to “M. UP”

until it clicks.

2.

With

this

setting,

the mirror is
locked up. Naturally, no image can
be seen

on the screen through the
viewfinder. Consequently, when
adjustments

for composition and

focusing are required

return

the

mirror to its

normal

position. (lower

the mirror).

*When using the

70mm

Leaf

Shutter

Lens, be sure to refer to the instruc-

tions packed with the lens.

28

To

attach to

tripods

with

a

3/8"

screw

unscrew the small screw found in

the

base of the camera‘s tripod

socket.

using a regular screwdriver

(-).

Next,

remove the adapter @ by insert-

ing a coin in the slot.

Finally,

attach

the camera to the 3/8"

tripod.

When attached to the accessory

Revolving Tripod Adapter, the
Mamiya M645 Super can be instantly
rotated to change

from vertical to

horizontal format, or vice versa.

In order to have the capability of

delayed

shutter

release, you must first

insert

an optional Cable Release

Adapter 2 into the camera’s Auxiliary

Release Contact, and any commer-

cially

available self-timer cable release

can be used.

29

1. The Shutter Release Button will not Move.

(a)

(W
@I
W

Check that the Shutter Release Selector

is not in the
locked position (Red dot).
Check that the Wind-up

Crank

has been wound

until

it
stops.
Check that the Battery Check Lamp

will

light. (If not,

replace

the battery.)

Check that the Dark Slide

of

the

Roll

Film Holder has

been removed.

2. The Mirror is locked in the Up Position. (Nothing can

be

seen

through

the

finder.)

(a)

(‘4

Check that the Mirror Lock-up Lever is not in the
“M.

UP” position. (Set the Multiple Exposure Lever to

white

q

mark)
Check that the Battery Check Lamp lights. (If not,
rapidly turn the Shutter Release Selector to the yellow
dot so that the Shutter Curtain

will

be closed and the

mirror

will return.) Replace the

battery.

3. Though the

fixed

Number

of

Exposure

has been Taken.

The Developed Roll Film has Fewer Exposures than it
should have.

(a)

Check that

start

mark of film has been aligned correctly.

4. The

Roll

Film Holder cannot be Removed.

(a) Check that the

Dark

Slide has been inserted.

5. Precautions for Mirror Lock-up Lever

If you

carry

a camera with you outdoors with the Mirror
Lock-up Lever at “M. UP”, light passing through the lens
will hit the Shutter Curtain, thereby possibly causing
damage to the curtain. If there is a time lapse before the
next shot during mirror lock-up photography, return the
lever to "NORMAL" or put a cap on the

lens.

(c)

Place the camera in the outside air only during the

moment of

exposure.

7. Precautions for AE Shooting

(a) Set

the film

holder’s Film Speed Dial to the sensitivity

of the film to be used.

30

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 the camera is stored for a long time, periodically
remove the camera and release the shutter several times
to keep the camera in good condition.

Cleaning:

Never touch the lens or mirror surfaces. When your camera

is contaminated with dust, fingerprints and so on, blow
away the dust particles with a blower, and clean the lens
surface with lens cleaning tissue and lens cleaner. Merely
blowing dust particles off the mirror surface is

sufficient-

never touch the mirror.

Periodic Check:

Periodically check the camera to make sure that it is in
working order. This is especially important before a photo­graphic assignment. (Check the battery, flash synchroniza­tion, mirror and shutter movement, film wind, diaphragm
automation and so on.)
If the camera is malfunctioning, take it to the nearest
authorized Mamiya Service Center for repairs.

31

Camera type : 6 x 4.5cm electronic focal-plane shutter SLR
Actual negative size 56 x

41.5mm

Film type

: 120 roll film (15 exposures)

220 roll film (30 exposures)

Polaroid

®

Land Pack film (Polaroid 100, 600 series)

135 roll film in film cartridge

Daylight loading interchangeable film backs with film speed dial available for

each film type.

:

Mamiya-Sekor C

80mm f/2.8N

(Multicoated)

Mamiya-Sekor C

80mm f/1 .9

(Multicoated)

M645 bayonet mount (applicable to all M645 lenses)
Moving coil, quartz-controlled focal-plane shutter

(Electronic)

B.4-1/1000

sec.

(Mechanical) 1/60 sec.

Film loading

Standard lenses

Lens mount
Shutter
Shutter speed

Shutter release

Mirror
Viewfinder

Focusing screen

Electromagnetic release.

Built-in shutter release lock and manual lock provided.
Instant return reflective mirror, with mirror lock-up capability.
Interchangeable (Waist Level Finder N, Prism Finder N and AE Prism

Finder N)
Standard: Rangefinder

Spot/Microprism.

with Fresnel lens, accessory

screens available.

32

Field of view
Film Transport

Exposure counter

Multiple exposure

Depth-of-field
Auxiliary release
contact

Battery checker
Synchronization

Back cover

Power supply

Others

Size & Weight

94%
Single

turn winding by Wind-up Crank.

Variable crank start position (6 positions).

Power Drive

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

with Multiple Exposure Lever.
Depth-of-field Scale provided on lens
With Receiver MZ inserted into body Contact, Transmitter MZ can be used
for remote control. With Cable Release Adapter in the contact, cable release
and self-timer cable can be used.
Red LED lights up. With Battery Check Button.
X terminal (hot shoe/terminal), Flash synchronization at

1/60

sec. or slower

speeds

Dark Slide Storage, Memo Clip

6V battery x 1

(4SR44

silver-oxide battery of

4LR44

alkaline-manganese

battery)

With neck strap.

Body with 120 Roll Film Holder/

3.6”(W) x

3.4”(H)

x

4.6”(D)

31.3 oz.

91 (W) x 87.5(H) x 116(D) mm

895g

33