Mamiya M645 1000S Instructions Manual

Mamiya M645 1000S

V *1

Introduction

The Mamiya M645 1000S is a new, improved model of the M645,

a camera widely acclaimed for bridging the gap between large-

and small-format cameras.

The purpose of the 645 format is to provide users with the advantages

of a larger negative but have the handling ease of a professional 35mm

camera.

Every care has been taken to assure that your Mamiya M645 1000S will

provide you with years of trouble-free service.

However, to avoid possible mishandling, please read this manual carefully.

Contents

AM Lever



26

Moving Coil Electronic Shutter



45

Aperture Ring

!Stop-down

Operation.._........__.._

26

Multiple Exposures



48

Battery Check

20

Names and Functions of Parts__ .___ ............. _ __. _

5

Care of the Camera

56

Precautions



55

Delayed Shutter Release.. ....... ._...__..

50

Shutter Release and Film Transport Mechanism



28

Depth-of-Field Preview Lever



26

Shutter Speed Dial



25

Depth-of-Field .......



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

46

Special Features of the M645 1000S



Film Advance..

25

Specifications



3

Film Loading._..



21

Testing Camera Functions



14

Focusing Screens.

18

The Neck Strap



30

Focusing..

27

Time Exposures...



53

Holding the Camera Securely



30

Troubleshooting



54

Infrared Photography

48

Unloading Film



29

Inserting the Battery.._ ...... . ..... _..._.... ......



......

19

Using a Tripod



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



53

Interchanging Finders_

16

Using Flash



47

Interchanging Lenses

15

Using the CdS Prism Fin

de

r_._ ....... _ ._



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

37

Interchanging the Film Advance Crank...... ........

61

Using the PD Prism Finder S



33

Mirror Lock-up .

49

Using the Waist-Level Finder S



42

Contents

AM Lever 26

Aperture Ring / Stop-down Operation 26

Battery Check 20

Care of the Camera 56

Delayed Shutter Release 50

Depth-of-Field Preview Lever 26

Depth-of-Field 46

Film Advance 25

Film Loading 21

Focusing Screens 18

Focusing 27

Holding the Camera Securely 30

Infrared Photography 48

Inserting the Battery 19

Interchanging Lenses 15

Interchanging Finders 16

Interchanging the Film Advance Crank 51

Mirror Lock-up 49

Moving Coil Electronic Shutter 45

Multiple Exposures 48

Names of Parts 5

Precautions 55

Shutter Release and Film Transport Mechanism 28

Shutter Speed Dial 25

Special Features of the M645 1000S 1

Specifications 3

Testing Camera Functions 14

The Neck Strap 30

Time Exposures 53

Troubleshooting 54

Unloading Film 29

Using a Tripod 53

Using Flash 47

Using the CdS Prism Finder 37

Using the PD Prism Finder S 33

Using the Waist Level Finder S 42

\

Special Features of the M645 1000S

1. Large Negative

The 6 x 4.5cm format offers approximately three times

more area than the 35mm format. Moreover, unlike the

6 x 6cm square format, there is little waste of the negative

area. For beautiful color enlargements every time, the

6 x 4.5cm format is ideal.

2. Compact Design

Despite the large negative, the Mamiya M645 1000S is

designed to handle as easily as a professional 35mm SLR.

Its compact size and light weight are perfectly suited for

the action photographer. It fits so well into ones hands that

it becomes an extension of one's reflexes.

3. Mamiya's Moving Coil Electronic Shutter

Mamiya has developed a revolutionary Moving Coil

Electronic Shutter for the M645. Electrical consumption

of this new shutter is approximately 1/10 that of previous

shutters. Furthermore, consumption remains constant

regardless of the shutter speed being used. In addition

to accuracy, long battery life is assured with this shutter.

4. Large, Bright Viewfinder

It is easy to catch the action while looking through the large,

bright viewfinder. Because of the Mamiya M645's automatic

diaphragm and quick-return mirror, the viewfinder never

goes dim. It is always bright and ready for the next photo-

graph.

5. Interchangeable Finders

Lightweight, Dualaction WaistLevel Finder S

A compact and light-weight finder that opens and

closes with a single touch. The WaistLevel Finder S is

ideal for copying, closeups, low and highangle photo

graphy and working in dim light. Additionally, it is instantly

convertible to an eyelevel sports finder which accurately

shows the field for the 80, 110, 150 and 210mm lenses,

enabling one to easily follow the action.

Prism Finder

The Prism Finder is well suited for action photography.

Whether the horizontal or vertical format is utilized,

focusing and following the action is as easy as using a

35mm SLR.

PD Prism Finder

The PD Prism Finder employs silicon cells for full-aperture,

center-weighted readings. It is your assurance that every

negative will be correctly exposed.

CdS Prism Finder with Built-in Meter

Accurate through-the-lens exposure measurement is

possible with the CdS Prism Finder, which couples to the

lens' aperture ring and indicates the correct shutter speed

for the selected aperture.

1

6. Flatness of the Film Plane

Developed through Mamiya's long experience with 120/220

roll-film cameras, the Roll Film Inserts for the Mamiya M645

keep the film perfectly flat for edge-to edge sharpness. Inserts

are available for both 120 and 220 roll film.

7. Multi-Coated Lenses

Mamiya-Sekor lenses are world-renown as professional lenses

for exceptional contrast, high resolution, clear definition, and

excellent color balance. All of the lenses for the M645, from wide

angle to telephoto, have been multi-coated to maintain their high

standard to performance, even under adverse lighting,

8. Unlimited Scope

A full range of accessories are available for the Mamiya M645 to

assist the photographer in capturing virtually any type of image.

Accessories include hand grips, interchangeable focusing screens,

and auto extension rings, complete with meter couping.

Multiple Exposure Provision

By lowing the Multiple Exposure Lever, the photographer may create

as many multiple-exposure images as desired. During multiple-exposure

photography, the Film Counter does not advance.

Mirror Lock-up

The Mamiya M645 is designed to produce minimal mirror vibration; however,

when it is necessary to completely eliminate vibrations, the mirror may be

locked in the up position. Mirror Lock-up makes close-up and telephoto

photography possible even at slow shutter speeds.

Two Shutter Release Buttons

The Mamiya M645 is equipped with two ideally located

Shutter Release Buttons, so regardless of how you hold

the camera, there is always a Shutter Release Button at

your fingertips,

Built-in Delayed Shutter Release

Depth-of-Filed Preview Lever

A single touch of the Depth-of-Field Preview Lever, which

is ideally located on the camera body, stops the lens down

to the working aperture so you can view the depth-of-field.

2

Specifications

Camera Body

Camera Type:

6 x 4.5cm electronic focal-plane shutter SLR

Film Type:

120 roll film for 15 exposures

220 foll film for 30 exposures

Actual Negative Size:

56 x 41.5mm (2 13/64 x 1 41/64")

Standard Lenses:

Mamiya-Sekor C (multi-coated)

80mm f/1.9, automatic diaphragm,

with meter coupler, 67mm filter size,

Mamiya-Sekor C (multi-coated)

80mm f/2.8, automatic diaphragm,

with meter coupler, 58mm filter size

Lens Mount:

Mamiya M645 bayonet mount

Shutter:

B

8-1/1000 sec

Moving Coil Electronic Focal-Plane

FP and X (1/60 sec) synchronization

Shutter release lock and shutter speed

dial lock

Focusing Screen:

The standard focusing screen, which is interchangeable,

has three focusing aids: a central split-image rangefinder

spot (wedge set at 45 degrees) surrounded by a micro-

prism collar and outer ground glass ring. A Fresnel lens

assures corner-corner brightness, and 94% of the picture-

taking frame is visible.

Mirror:

Instant return with a mirror lock-up provision.

Film Transport:

A single revolution of the interchangeable film-advance crank

transports the film. The camera is equipped with double ex-

posure prevention, but multiple exposures can be easily

made.

Exposure Counter:

Progressive type, automatic reset, automatic changeover with

insertion of a 120 or 220 film insert.

Battery Check:

Depressing the B.C. Button illuminates a green LED if the

battery condition is satisfactory.

Multiple Exposures:

Lowing the Multiple Exposure Lever enables creating multiple

exposure images. The Film Counter will not advance in this

mode.

Delayed Shutter Release:

Variable delay from 5-10 seconds.

3

()NA/Mist-Level Finder S)

3-29/3T x 3-1516"

x

MN"

(w/1.9 lens)

55.4 az

(w/2.8 lens)

49.6



oz

(99.3 x 100



x 166.5mm)

(w/Prism Finder)

(1570



a)

(1405



a)

3-29/32" x4-27132' x 6-9116"

62.3



az

56.4



oz

(99.3



x 122.7



x



166.5mm)

(w/PD Prism Finder S)

(1765



g)

(1600



g)

3.29/32' x 4-29132' x 6-9116"

66.5 az

60.7



oz

(99.3 1 124.7



x166.5rnm)

(wICdS Prism Finder)

(1;;.



g)

(1720



g)

3-29132" x 4-29132' x 6-9/16'



67.2 oz



61.4 az

(99.3 x 124.7 x 166.5mm)



(1905 g)



(1740 g)

Depth w1/30mm



f12.6 lens; 6-1/16" (154mm)

Depth-Field Preview Lever

Spring-loaded, self returning

Interchangeable Finders

Prism Finder:

The image in the Prism Finder is right-side up,

laterally correct and moves in the right direction;

magnification of 0.74x with the standard lens at

infinity; a built-in hotshoe; an eyecup.

PD Prism Finder:

The PD Prism Finder has a built-in silicon cell,

through-the-lens, center-weighted metering: 7

LEDs in the viewfinder indicate correct or com-

pensated exposure, with ASA 100 and the f/1.9

lens; meter coupling range of of EV -1.15 to +19

(f/1.9, 8 sec. to 1/1000 sec.); with the 2.8 lens,

EV 0 to 19 (f/2.8, 8 sec. to 1/1000 sec.); camera

body battery is the power source; other features

same a Prism Finder.

CdS Prism Finder:

A Prism Finder with CdS through-the-lens , full

aperture control, center-weighted metering; zero

method with indicator needle; couples to the aper-

ture ring; shutter speed manually set; uses one

silver oxide SR44 or one alkaline LR44 battery;

at 100 ASA and the f/1.9 lens: meter coupling

range is EV 2.85 to 17 (f/1.9, 1/2 sec. - f/11,

1/1000 sec.); with f/2.8 lens: EV 4 to 18 (f/2.8

1/2 sec. - f/16, 1/1000 sec.); other features

same as Prism Finder.

Waist-Level Finder S:

Opens and closes with a single touch; magnification of 1.3x

(with standard lens at infinity); diopter correction lenses in-

terchangable with standard magnifier; built-in sports finder

shows field for standard lens and accepts a mask for the

110, 150 and 210mm lenses; all fields show approximately

80% of the picture-taking area.

Dimensions and Weight:

(width, height, depth with f/1.9 80mm lens)

4

Names of Parts

Camera Body

Focusing Screen

Focusing Screen Lug

Finder Mounting Guide

Alignment Dot

Depth-of-Field Preview

Shutter Release Lock Ring

Battery Check Lamp

Flash Sync Terminals

Neck Strap Lug

Shutter Speed Alignment Mark

Shutter Speed Dial

Lens Release Button

Delayed Shutter Release Lever

Mirror

Shutter Release Button

5

Film Plane Mark

Back Latch Cover

Back Cover

Memo Clip

Exposure Counter Window

Battery Check Button

Upper Shutter Release Button

Mirror Lock-up Lever

Film Advance Crank

Multiple Exposure Lever

6

Battery Chamber Cover Latch

Battery Chamber Cover

Tripod Socket

7

Battery Chamber Cover Latch

Battery Chamber Cover

Tripod Socket

7

Focusing Ring

Distance Scale

Depth-of-Field Scale

Alignment Dot

Aperture Ring

Exposure Meter Coupler

AM Lever

Lens

8

Start Mark

Release Latch

Spool Clip

Leader Paper Guide Marks

Film Spool Stud

Take-up Spool Stud

Film Type Index

(120 or 220)

Roll Film Insert

9

Prism Finder

Hotshoe

Eyepiece

Finder Release Button

Eyecup

10

PD Prism Finder S

Aperture Ring Coupling Pin

Hotshoe

Eyepiece

Eyecup

Diopter Lens Retaining Ring

Meter Switch

Shutter Speed Dial

ASA Window

Finder Release Button

11

Aperture Ring

Coupling Pin

Hotshoe

Eyepiece

Eyecup

Diopter Correction Lens

Retaining Ring

Shutter Speed Dial

Power Switch

ASA Dial

ASA Window

Finder Release Button

CdS Prism Finder

Battery Chamber Cover

12

Waist-Level Finder S

Auxiliary Mask

Alignment Dot for Changing Magnifier

Sports Finder eyepiece

Sports Finder Frame for

Normal Lens

Finder Hood Opening Flange

Magnifier Release

Finder Release Button

13

k..

,

*

A...

_

Testing Camera Functions

To release the shutter when there is no film in the camera, proceed as follows:

1. Insert a battery into the camera.

2. Set the Multiple Exposure Lever to "MULTI".

3. Set the Shutter Speed Dial to any setting other than the red concentric circle

4. Turn the Film Advance Crank clocwise until it stops.

5. Align the Shutter Release Lock Ring with the white dot, and then release

the shutter.

When you are ready to load the camera with film, return the Multiple Exposure

Lever to its normal position. If the lever is not in its normal position, the film

will not advance.

If the shutter is released without a battery in the camera, the mirror will lock in

the up position. To return the mirror to its normal position, depress the

Battery Check Button as far as it will go.

If the shutter is released with the Shutter Speed Dial set to the red concentric

circle position

the mirror will lock in the up position.

To lower the mirror, turn the Shutter Speed Dial to either its 'B' or 1/1000

setting.

At times, it may be necessary to rotate the Film Advance Crank two full turns

to cock the shutter when an empty take-up spool is in the camera.

14

Interchanging Lenses

Removing Lenses

While pressing the Lens Release

Button (13), turn the Body Cap counter

cockwise until the red dots are aligned,

and then lift the cap out of the camera

body.

While aligning the alignment dots

(33, 4), insert the lens into the

camera body, and then twist the lens

clockwise until it clicks and locks into

place.

While depressing the Lens Release

Button (13), grasp the part of the lens

barrel that has the Depth-of-Field

Scale (32) and twist the lens counter-

clockwise until it stops. Lift the lens

out of the camera body.

Removing the Lens Cap

Attaching Lenses

15

Interchanging Finders

All of the M645 finders are interchanged in the same way:

Prior to attaching the finder to the camera, confirm that the

white dot on the Finder Release Button is pointing up.

If the white dot on the button is aligned with the white dot on

the finder, depress and release the button; the white dot on

the button will automatically point up.

In this state, the button cannot be pressed. Consequently,

the finder cannot be accidentally detached from the camera.

Place the rear part of the finder on the camera body while

holding the front part of the finder slightly upward.

Slide the rear part forward until it stops, and then gently lower

the finder onto the camera body, The finder will lock into place

Attaching a Finder

16

Removing a Finder

1. Turn the Finder Release Button clockwise until it stops (about 60 degrees).

2. Push the Finder Release Button in.

3. While pushing the Finder Release Button with your thumb, lift the finder off the camera.

CAUTION

Do not leave both white dots aligned while the finder is attached to the camera as the finder

may become detached if the Finder Release Button is pressed.

If you press the Finder Release Button until the white dot faces up, push the finder down on

the camera body to re-lock it into place.

17

Mamiya M645 1000S Instructions Manual

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