Thank you very much for your purchase of the M645Super.The Mamiya M645 Super is the latest 6 x 4.5cm mediumformat SLR. This camera has been developed throughMamiya’s expertise in the most advanced technologiesand offers the quality of a large negative as well as themaneuverability and operating convenience normallyfound only in smaller cameras.In order to satisfy the demands of the professional photo-grapher there is a broad assortment of accessories availa-ble the AE Prism Finder and its 3-way metering system,automatic Power Drive and a Po la ro id ® film back are rep-resentative samples of the M645 system accessories thatmake it possible to further expand the scope of your photo-graphy.You can combine various types of system accessories tosuit your applications, and enjoy your photography.

For instructions of other system accessories, please referto the respective instructions supplied with these items.

To ensure proper operation of your M645 Super, pleasebe sure to read this Manual carefully before using yourcamera.

Special Features o f Mamiya M645 Super .................... 2Names and Function of Parts ....................................... 5Atlaching and Removing Lenses .................................. 8

Attaching and Removing Roll Film Holders ................. 9Attaching and Removing Finders .................................. 10Attaching and Removing the Wind-up Crank ............... 11

Inserting Battery and Battery Check ............................. 1 2Operation Test ................................................................ 13Film Loading ................................................................... 14

Advancing Film to the First Exposure .......................... 17Shutter Speed Dial ......................................................... 18Focusing ......................................................................... 19

Aperture Ring/Stop-down Operation 20

Shutter Release Operation _._...._......_.......................,.... 211Methods of Holding the Camera Securely .._.............. 22Film Transport and Film Unloading .._...._._......_..... 23

Depth-of-field 24

Using Flash . . . . . . . . . . 26

Multiple Exposures/Infrared Photography .,.,.,..,_._...._._ 27

Time Exposures/Mirror Lock-up Photography .,......,_,_ 28Using a Tripod/Using Delayed Shutter Release ,_,....,. 29

Handling Precautions .._._...._._............................ 30

Storing and Checking the Camera 31

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

1

1 3 Times More Area than 35mm Format, LessWaste of The Negative Area:

The 6 x 4.5cm format offers approx. 3 times more areathan the 35mm (24 x 36mm) format. The horizontal andvertical ratio of the area is proportional to the size of mostprinting papers, so there is little waste of the negativearea. For beautiful color enlargements, the 6 x 4.5cm isthe ideal format.

2 Versatile, Light-Weight Body:

The M645 Super is a compact, light-weight, all-roundcamera designed to handle as easily and speedily as a35mm SLR.Its size and weight are well suited for action photo-graphers.

, Interchangeable Film Holder System EnablesPolaroid Photography:

The M645 Super features an interchangeable film holdersystem. A range of film holders can be used depending onthe application. A 35mm Roll Film Holder, “Polaroid” LandPack Film Holder as well as 120 and 220 Roll Film Holdersare available. This system can be quickly attached to the

camera, ready for the first photograph. Also, fail-safedevices are incorporated including a release lock andremoval lock, using a Dark Slide.

4 Unique Moving Coil Electromagnetic Release and High-Precision Electronic Shutter:

The M645 Super features a revolutionary, quartz-controlledmoving coil electronic shutter which conserves batteryconsumption.The moving coil is operated twice by an electronic circuit,to acuate the electromagnetic release.This unique method allows high-precision shutter controlas well as wireless remote control.

5 Large, Bright Focusing Screen N, to satisfy yourApplications:

It becomes easy to obtain optimum results when lookingthrough the large, bright viewfinder. Five types of FocusingScreens are available to facilitate photographing specialsubjects.

2

Interchangeable Viewfinders for All Applications:l Lightweight, Waist Level Finder N

The waist level finder hood can be opened and closedwith a single action. Lifting the magnifier upright com-pletely seals the hood, making the viewfinder ideal foroutdoor photography, close-ups and copying. Thesports finder which is located outside the hood is con-venient for fast action photography.

l Prism Finder N suitable for snap photographyThe prism finder is well-suited for action photographyproviding an unreversed, eye-level image. Horizontal orvertical photographs are both easy with this finder.

. 3-way TTL metering AE Prism Finder NThis AE Prism Finder N features 3-way metering whichcan automatically switch from center-weighted averag-ing metering for general photography, to spot meteringwhich will emphasize a specific photographic point oryou can designate either of these metering methodsaccording to photographic conditions. These meteringsystems facilitate AE Photography under difficultconditions, such as adverse lighting. Further a *3 EVexposure compensator expands the range of exposurecontrol.

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

Mamiya-Sekor lenses have achieved world-renown rec-ognition as professional lenses of exceptional contrast,high resolution, clear definition and excellent colorbalance. The lens series includes wide-angle to telephoto,and special applications lenses. All of these lenses aremulti-coated lo eliminate flare and ghosting, even underadverse lighting conditions.

8 A Broad Accessory System to Expand YourScope:

A full range of accessories are available for the M645Super to assist you in capturing virtually any type ofimage. These accessories include hand grips for conve-nient, easy handling. auto extension rings for easy close-ups and copying, auto bellows, and infrared cordlessremote control to satisfy all photographic requirements.Please refer to the M645 Super system chart for a com-plete listing.

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Hot-shoeHot shoe type electronic flashes can be mounted.

Multiple exposure operationA simple operation of the Multiple Exposure. Leverallows you to take as many multiple exposures as youwish, thereby making it possible lo explore new photo-graphic situations.

Mirror lock-up systemThe mirror lock-up feature enables manual raising ofthe mirror before the exposure is made to minimizevibration. This provision makes clear close-up and tele-photo photography possible even at slow shutterspeeds.

4

Focusing Screen N Viewfinder ContactThis electric contact is used to

Aperture Ring Couping PinThis pin is fitted into the ExposMeter Coupler of the lens, totransmit the aperture data to theAE Prism Finder.

exchange data with AE PrismFinder.

Hot-shoe (X contact)A cordless flash can be used withthis shoe.

Alignment Dot/Battery CheckLamp Flash Sync Terminal

A flash bulb, flash synchro card

Shutter Release SelectorA white square is used dnormal photography. Whendot is indicated. the shutllocked, turning power OFF.When the battery is exhausted,the mechanical shutter can bereleased at approx.1l/60 secondwhen this selector is aligned withthe yellow dot.

and optional synchro terminaladapter can be connected withthis terminal.

Mirror Lock-up Lever

Neck Strap Lug

Auxiliary Release ContactWhen the cover is moved to theleft the contact appears. This

Shutter Release Button contact is used for connections ofexternal releases such as a spe-

Focusing Screen Release PinWhen you want to change thescreen, slide this pin to the leftand remove the screen.

cial hand grip and remote controlunit.

Lens Release Button

*Never touch the surface of themirror.

Battery Check ButtonLED displays the present batterycondition.

5

Finder Coupling Panel (Front)

Finder Coupling Panel (Rear)

Electric Contact for Film HolderThis contact receives film sen-sitivity data from the film holder.

Film Holder Mount

speed and switches the opera-tion mode from manual to AEphotography.

Shutter Speed Dial Lock ReleaseButtonThis button is used for unlockingthe shutter speed dial from an AE,posItion

A Single complete turn cocks theshutter and advances the film for

Film Holder Coupling PinGuide

Film Transport Gear

Film Holder Mounting Bracket

Wind-up Crank Lock Lever

Neck Strap Lug

Multiple Exposure LeverWhen this lever is set at “MULTI”,film is not advanced even whenthe Wind-up Crank is turned, thusallowing multiple exposures onthe same film frame.

6

Distance Scale

This ring adjusts t

The camera to subject distancecan be set or confirmed with thisscale.

Depth-of-field Scale

effect of the aperature settingg onthe lens, set this lever to “MAN-UAL” and you can observe theeffect through the viewfinder.*Normally use your camera in“AUTO” position including AEphotography.

Provides a quick reading ofdepth-of-filed for various aper-tures and distances.

Lens Alignment Dot

Exposure Meter CouplerThis coupler is engaged with theAperture Ring Coupling Pin,transmitting an f/stop number tothe AE Prism Finder.

Battery Chamber Cover

Battery Chamber Cover Latch

coin.

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Removing the Front Body Cap:

Turn the Front Body Cap in the direc-tion of the arrow, while pushing theLens Release Button @ toward thearrow.*The Upper and Rear Body Protective

Covers can be readily removed.

Attaching the Lens:

Align Lens Alignment Dot @ with theCamera Alignment Dot 0. lnsert thelens into the camera body. Then turnthe lens in the direction of the arrowuntil it clicks and locks into place. Makesure that Aperture Ring Coupling Pin(A) is engaged with the Exposure MeterCoupler.

Removing the Lens:

Remove the lens using the same pro-cedure as described for the Front BodyCap.

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Attaching the Roll Film Holder: Removing the Roll Film Holder:

While holding the Rubberized Finger Insert the Dark Slide between bothRest @ 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 theholder @ properly to the Holder camera body while pressing down onMounting Bracket @ of the body. the Lock Release Button @Press the upper part of the holdertogether with the body until clicks.

The green line on the Dark Slideindicates the position to which theDark Slide can be inserted intothe Roll Film Holder withoutblocking the image.

Green Line

FIYZ9

Attaching the Finder

Insert the front finder mounting latch @into the body side slot @ as shown bythe arrows, and press the finder downuntil the rear hooks latch firmly.

Removing the Finder:

Hold the Finder Lock Release Button( 0 ) in while pushing down on theButton ( ,l ) on the opposite side ofthe finder.*Other finders can be attached andremoved in the same procedure asdescribed above.

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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 crankthe crank to remove. against the camera body.

It is possible to select the start positionof the Wind-up Crank in six differentpositions. The following figure showsthe six different positions.

*For attaching and removing thePower Drive N, refer to its instructionmanual.

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The M645 Super uses one 6V silver-oxide battery (4SR44) or 6V alkaline-manganese battery (4LR44). Pull theBattery Chamber Cover Latch (at thebottom of the camera body) in the di-rection of the arrow, and the ChamberCover can be removed.

Battery Check

First, insert the battery 0 terminal intothe Battery Chamber and press thebattery’s @ terminal in while confirmingbattery polarity. Then close the cover.*Before inserting the battery, arrange

the battery removal ribbon correctlypassing it under, then over, the bat-tery. Consequently the battery canbe removed easily by pulling the endof the ribbon.

When the Battery Check Button @(located on the front of the camera) isdepressed, the Battery Check Lamp@ lights up. The lamp will not light ifthe battery capacity is insufficient or ifthe battery is inserted incorrectly.

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Caution:1. Carefully wipe the contacts of thebattery before inserting it into thechamber. Failure to do this could resultin poor electrical contact and conse-quent erratic functioning of the camera.2. When the camera is not used for along period of time, remove the batteryand store it in a cool, dry place.3. Battery life differs, depending onbattery brand, period after manufac-ture, storage conditions, temperatureduring operation and operating fre-quency. Prior to use, check the batterycondition, using a battery checker.It is recommended that you take aspare battery with you when going outon a photographic trip, for example.4. This camera is designed for usewith either a silver-oxide or alkaline-manganes battery. However. the life ofa silver-oxide battery will be muchlonger. The silver-oxide battery is pre-fered when the AE Prism Finder isattached.

At times it may be necessary to rotatethe film advance crank two full turns tocock the shutter when an empty take-up

Operation Test/

@I Remove the Dark SlidePull out the Dark slide and place itinto the Dark Slide Storage Slot.

i : -. -_

\2 Set the Lever to “MULTI,”

Set the Multiple Exposure Lever tothe “MULTI 0” mark position.

I - ---- ‘. !

.3 Turn the Wind-up CrankAdvance the Wind-up Crank onecomplete revolution.

@ll Release the ShutterSet the Shutter Release Selectorto the “m mark, and press thebutton.

Loading the Film

While pushing the Back Cover Lock While squeezing in on both sides ofRelease Button @ downward, press the Release Latch 8, pull the Roll Filmthe Back Cover Opening Button @I>, Insert out of the camera body. At thatand the Back Cover will open. time, move the empty spool in the

upper part down to the lower spoolcompartment.

Align the right-hand side of this emptyspool with the lower Spool Stud @(convex). Slide the spool into positionmaking sure that the left-side of thespool is properly held by the Spool Clip.

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In the same manner, insert a roll of filmin the upper compartment. At that time,check that the film leader paper is setas shown in the photo above. (Theleader paper inside is facing outwardon the pressure plate. Note that thefilm direction is wrong if the leaderpaper is facing inward.)

Pull out some of the leader paper. Gently rotate the Take-up Spool in theInsert the tip of the leader paper into direction of the arrow until the startthe slot of the lower Take-up Spool. mark of the leader paper is aligned

with the start mark (A) on the SpoolClip. (Correctly align the start markswith each other, taking care that thefilm is not rolled excessively.)

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Insertion of the Roll Film Insert Memo Cllp

Insert the loaded Roll Film Insertstraight into the holder as shown in thephoto above. Be sure to check that theRoll Film Insert has been completelyset before closing the Back Cover.

The Memo Clip on the Back Cover isused to hold the box top of the film inuse or a piece of paper for storingnecessary data.

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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 FilmHolder is mounted onto the Body:Make sure that the Multiple ExposureLever @ is aligned with a white squaredot. Wind the Wind-up Crank until itstops and the number 1 will appear inthe Film Counter Window.The shutter is now cocked and thecamera is ready for the first exposure.

Film Advancing by Film AdvanceKnob of the Roll Film HolderCheck that the Dark Slide is com-pletely inserted (light blocked). Whenthe Film Advance Knob @ of the RollFilm Holder is rotated in the direction ofthe arrow until it stops, the camera willbe ready for the first exposure.*It should be noted that when the

Coupling Pin (refer to the manual forthe Roll Film Holder) is depressedwith the finger, the film will not stop atthe first frame.

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i

Align your desired shutter speed withthe white alignment index 8.*In other than the 0 and 0 marks, the

dial will rotate freely, and each shut-ter speed display will stop at the clickpoint.

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. Color Coding

The yellow 4 and 2 represent fullseconds. and all other figures represent the denominator of a frac-tion. (Thus. 30 equals 1/30 sec.)The yellow B represents BULB.When the Shutter Speed Dial is setto B, the Shutter remains open aslong as the Shutter Release Suttonis depressed.The red 60 (1/60 sec) representsthe highest permissible shutterspeed for electronic flash syn-chronization.The red 0 mark is the AE position.and 0 is the AE Lock position.These marks are used with the AEPrism Finder N. (When the PrismFinder N and Waist Level Finder Nare attached, and the dial is set at0 or 5. the effective shutter speedis 1/1000 sec).Set the Shutter Speed Dial only tothe click stop position. Using anintermediate positions will result ininaccurate exposure.

When selecting shutter speed settingsother than the C* and R marks, releasethe lock by pushing the button @ infomt of the dial. Turn the ShutterSpeed Dial to your desired speed.

While looking through the viewfin-der, adjust the lens Focusing Ringuntil the most important part of thesubject appears sharp and clear.Extremely accurate focusing issimplified by the split-image range-finder spot located in the center ofthe Focusing Screen. (to use,match up the image on both sidesof the split-image.)

The split-image rangefinder spot issurrounded by a microprism collarwhich fractures the image wheneverit goes slightly out-of-focus. Con-sequently, this is an invaluable aidfor pinpoint focusing accuracy.The outer ground glass ring (whichencircles the microprism collar) canbe also used for focusing.

*As an accessory, Mamiya offersDiopter Correction Lenses which canbe attached to the viewfinders. Nearand farsighted persons will find theseaccessories useful for obtainingaccurate focus.

*The Focusing Screen is interchange-able. To change screens, refer to theinstruction manual supplied with thescreens.

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Set the desired f/stop on the ApertureRing @ by aligning the f/number withthe red reference dot @. (The ApertureRing has a click stop for each f/stop.In-between clicks can also be used.)

AM (Auto/Manual) Lever

1. In normal photography, set AMLever so that character “A” is visiblein the lever window. If you do so,the aperture will remain wide open,stopping the lens down only duringshutter operation.

2. Moving the AM Lever of the lens sothat “M” is visible will stop the lensdown to the preselected aperture,thus making it possible to confirmeffect of the aperture through theviewfinder.

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1. The Shutter Release Button @ is a2-step type. The release pressurewill charge halfway through thecycle. The first step light up themetering related display. Thesecond step is the electromagneticshutter release position. (The firstposition operates only when the AEPrism Finder N is used.)

If the film is not completelyadvanced, the Dark Slide is notremoved or the battery isexhausted, the shutter can not bereleased even when pushing theShutter Release Button.After releasing the shutter, theWind-up Crank is unlocked auto-matically, making it possible totransport the film to the next frame.

When this setting is used, the shutterspeed is always 1/60 sec. regardlessof the Shutter Speed Dial postion.When your camera is not in use, setthe Shutter Release Selector to thered dot so that the power is turnedOFF.

*In normal photography, set the shutterRelease Selctor @ to the “NORMAL”(white square) position.

*Note: Always make sure that theShutter Release Selector clicks intoposition. When the battery isexhausted during photography, andthe shutter can not be released, setthe selector to the yellow dot, andyou will be able to use the mechanicalshutter at 1/60 sec.

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Attaching and Removing theNeck Strap to the Camera

Eye-level Operation

No matter how carefully one focusesthe camera, if there is camera move-ment during the instant that the shutteris released, sharp pictures are unlikely.To eliminate camera movement, caremust be taken regarding the method ofholding the camera and releasing theshutter.

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Waist-level Operation

When hand-holding the camera withthe Waist Level Finder attached, adjustthe length of the neck strap to take outthe slack and support the camerafirmly against your body.

Attaching itto the camera

1. Draw out the neck strap fastener 8-Gthe attaching clip while pushing it down.

2. Place the hole of the strap fastener @over the lifting lug of camera body asillustrated, and pull until it clicks andlocks into place.

Removing itfrom thecamera

With your finger, pull the neck strap fastener@of attaching clip upward and push part(@ in the direction of the arrow. The strapcan now removed.

When attaching the strap to the lifting lugon the side of the camera with the Wind-upCrank, insert the neck strap fastener @into the lower pad of the double solt.

1. Turn the Wind-up Crank until itstops (one turn), and the camera isready for the next exposure.

2. After the fixed number of exposureshas been taken (15 for 120 film, 30for 220 film), the Shutter ReleaseButton automatically locks, and theWind-up Crank becomes free. Atthat time, wind the Crank until theleader paper is completely woundonto the Take-up Spool. (By turningthe crank 4 to 5 times after the finalframe of the film comes in sight, thefilm will be wound up completely.)

3.

4.

5.

Open the Back Cover, and removethe Roll Film Insert. The exposurecounter will return to S (start)automatically.Move the Spool Clip of the Roll FilmInsert outward to remove the film.Remove the film from the Roll FilmInsert, exercising care that the filmdoes not loosen, and seal it.

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Depth-of-field refers to the total area(foreground and background) whichwill appear in sharp focus. The area ofsharpness (depth-of-field) dependsupon the distance the lens is focusedat, the f/stop (or aperture) being used,and the focal length of the lens.The area that will appear sharp can bedetermined as follows:

1. Depth-of-field can be determinedby referring to the Depth-of-fieldScale engraved on the lens.For example, with the 60mm f/2.8Nlens focused at 10 ft. (3m) and theAperture Ring set to f/22, the Depth-of-field Scale reveals that every-thing from about 7ft. (2m) to about20 ft. (6m) will appear sharp.

2. The lens can also be stopped downto the preselected aperture fordirect viewing of the depth-of-fieldby using the AM Lever on the lens.To do so, move the lever so that “M”(manual) is visible. When the lensis set to “M” you can take a pictureobserving the depth-of-field in thefinder.

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The bracket o f a handle-mount flashunit can be attached to the camera’stripod socket. A shoe-mount flash canbe attached to the camera’s Hot-shoeor the Hot-shoe of the Left Hand Grip.*The Mamiya M645 Super has an

(1) When using an electronic flash,plug the synchronization cord intothe sync terminal and set the Shut-ter Speed Dial to 1/60 sec. orlonger.

Flash Synchronization Chart

When the Multiple Exposure Lever isaligned with “MULTI”, the double-exposure prevention mechanism isdisengaged, so that the shutter can becocked (and even with the Wind-upCrank turned) without moving the film,making multiple exposures possible ontile same frame.(When making multiple exposures, theexposure counter will not advance.,*Remember to return the lever to the

white square mark position uponcompletion of the multiple exposure.If you forget to return the lever, multi-ple exposures will continue to occuron and the next frame.

w hen using infrared film, it is neces-

reference mark of the lens. Makethe focusing adjustement by turningthe Focusing Ring slightly in thedirection of the arrow in the accom-panying photograph so that the dis-tance just observed is aligned withthe infrared mark. Focus is nowcorrect for infrared and you canrelease the shutter.

*For information regarding the properfilter and exposure, refer to the datasheet packed with the film. Alwaysuse the appropriate filter for the lens.

sary to make a focusing adjustment inorder to achieve accurate focus. Thisis becuase the focus position of theimage deviates from normal since theinfrared ray wavelength is longer.

Focusing Adjustment Procedure:1. The red dot or line on the right side

of the lens center reference line isthe infrared mark.

2. After focusing in the usual manner,check the distance on the DistanceScale that is aligned with the center

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To take time exposures, set the ShutterSpeed Dial to "B" and use a cablerelease with a lock provision. Insertingan optional Cable Release Adapter intothe Auxiliary Release Contact of camerabody, allows a cable release to beused.

When the camera i s mounted on atripod for copy work, close-ups or tele-photography at long (slow) shutterspeeds, the small amount of vibrationdue to “mirror-bounce”, which is nor-mally o f no consequence, may causeblurring of the image due to the highmagnification encountered in extremeclose-ups and telephotography. Mirrorshock can be eliminated by locking themirror in the up position before makingthe exposure.

. 1. To lock the mirror up, move theMirror Lock-up Lever to “M. UP”until it clicks.

2. With this setting, the mirror islocked up. Naturally, no image canbe seen on the screen through theviewfinder. Consequently, whenadjustments for composition andfocusing are required return themirror to its normal position. (lowerthe mirror).

*When using the 70mm Leaf ShutterLens, be sure to refer to the instruc-tions packed with the lens.

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To attach to tripods with a 3/8" screwunscrew 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 accessoryRevolving Tripod Adapter, theMamiya M645 Super can be instantlyrotated to change from vertical tohorizontal format, or vice versa.

In order to have the capability ofdelayed shutter release, you must firstinsert an optional Cable ReleaseAdapter 2 into the camera’s AuxiliaryRelease Contact, and any commer-cially available self-timer cable releasecan be used.

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1. The Shutter Release Button will not Move.(a)

(W

@I

W

Check that the Shutter Release Selector is not in thelocked position (Red dot).Check that the Wind-up Crank has been wound until itstops.Check that the Battery Check Lamp will light. (If not,replace the battery.)Check that the Dark Slide of the Roll Film Holder hasbeen removed.

2. The Mirror is locked in the Up Position. (Nothing can beseen through the finder.)

(a)

(‘4

Check that the Mirror Lock-up Lever is not in the“M. UP” position. (Set the Multiple Exposure Lever towhite q mark)Check that the Battery Check Lamp lights. (If not,rapidly turn the Shutter Release Selector to the yellowdot so that the Shutter Curtain will be closed and themirror will return.) Replace the battery.

3. Though the fixed Number of Exposure has been Taken.The Developed Roll Film has Fewer Exposures than itshould 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 LeverIf you carry a camera with you outdoors with the MirrorLock-up Lever at “M. UP”, light passing through the lenswill hit the Shutter Curtain, thereby possibly causingdamage to the curtain. If there is a time lapse before thenext shot during mirror lock-up photography, return thelever to "NORMAL" or put a cap on the lens.

(c) Place the camera in the outside air only during themoment 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.

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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 adamp or salty atmosphere. (Color film should be stored atthe manufacturer’s recommended temperatures,)Since cameras are precision instruments, avoid shocksand rough handling.When the camera is stored for a long time, periodicallyremove the camera and release the shutter several timesto keep the camera in good condition.

Cleaning:Never touch the lens or mirror surfaces. When your camerais contaminated with dust, fingerprints and so on, blowaway the dust particles with a blower, and clean the lenssurface with lens cleaning tissue and lens cleaner. Merelyblowing dust particles off the mirror surface is sufficient-never touch the mirror.

Periodic Check:Periodically check the camera to make sure that it is inworking order. This is especially important before a photo-graphic assignment. (Check the battery, flash synchroniza-tion, mirror and shutter movement, film wind, diaphragmautomation and so on.)If the camera is malfunctioning, take it to the nearestauthorized Mamiya Service Center for repairs.

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Camera type : 6 x 4.5cm electronic focal-plane shutter SLRActual negative size 56 x 41.5mmFilm 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 foreach 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 mountShutterShutter speed

Shutter release

MirrorViewfinder

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 PrismFinder N)

Standard: Rangefinder Spot/Microprism. with Fresnel lens, accessoryscreens available.

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Field of viewFilm Transport

Exposure counter

Multiple exposureDepth-of-fieldAuxiliary releasecontact

Battery checkerSynchronization

Back coverPower supply

OthersSize & Weight

94%Single turn winding by Wind-up Crank.Variable crank start position (6 positions).Power DriveProgressive type, automatic reset.The counter for 120 and 220 film will be automatic.Available with Multiple Exposure Lever.Depth-of-field Scale provided on lensWith Receiver MZ inserted into body Contact, Transmitter MZ can be usedfor remote control. With Cable Release Adapter in the contact, cable releaseand 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 slowerspeedsDark Slide Storage, Memo Clip6V battery x 1 (4SR44 silver-oxide battery of 4LR44 alkaline-manganesebattery)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

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