20 Most Recent Mamiya 645 Pro TL Medium Format Camera - Page 2 Questions & Answers

You probably nees the "P" adapter made to attach the back to the camera. If your item did nopt come with one, you will have to buy it seperately. Go to Mamiya.com and download the owners manual pdf.

Mamiya... • Answered on Dec 19, 2011

You might want to check and make sure the battery is still good. If you purchased the camera used and didn't change the battery then this might be the case.

But in the mean time this is what you need to do:
1st-make sure that the shutter speed dial is set to any shutter speed other than the red circle w/red ring. If your camera is set to that it will drain your battery when not in use since it is designed to be an automatic setting. I set mine to 1/125th to do this push in the circular dial on the side and at the same time turn the knob.

2nd- locate the 2 levers on the opposite side of the shutter speed dial. Once you found them then position the back lever all the way forward towards the setting for "MULTI" and position the lever towards the front straight up.

3rd- then wind the film crank till it won't wind anymore and depress the shutter, if it is wound and the shutter release is still stuck then skip to the fourth step, if something happened and you heard a click then still proceed to the next step because no the shutter release will be temporarily stuck.

4th-Once both of these levers are in this position there should be a red button just behind the shutter release button on the top right side of the camera.... drum roll please...."Push the red button" what you should hear is a rather loud click, this click is the mirror releasing allowing you to: 1 wind the film crank and take another picture and 2 this also now allows you to see through the lens again (assuming that you have a lens on the camera).

In Conclusion: without a battery that is fully functional in the camera this is how the camera will operate once you get a battery for your camera then reposition the levers on the side of the camera opposite of what I suggested (this will be the normal operating mode for the camera with a battery) then when you wind the film crank and depress the shutter everything will function normally.

Mamiya... • Answered on Sep 21, 2011

I've got the same problem :-( Help would be appreciated.

Mamiya... • Answered on Jan 29, 2010

Those are spacers for equal plane for all corners.

Without the service manual, then you are up the river without ...

Just try to put spacer(s) on one side more than the other and close it up. Now look thru the viewfinder with lenses attached and check for sharpness.

If you're doing lots of cloe-up or macro, then those spacers are needed. If you can't correct problem, just shoot at F5.6 or higher.

You will have to remove or add spacer(s) by using T & E methods.

[email protected]

Mamiya... • Answered on May 14, 2009

its a small plastic latch in black colour.u just have to scroll that down and it will open then insert the roll.

Mamiya... • Answered on Dec 08, 2008

It sounds like there is a problem with the frame counter in the film back itself. Try operating the camera with the back removed and on multi-exp to check the shutter functions.

Mamiya... • Answered on Aug 12, 2008

Problem solved- The camera does not operate correctly unless the battery is in good condition, in place, and all the contacts are clean. In the RZ76 as opposed to the old RB models the components "talk" to each other: via electronic circuits. The back "tells" the camera bod if the dark slide ins in or out and whether the film is loaded or at the end of the roll. If the batter voltage is too low or the contacts are no clean and making full contact the body has no way of knowing the condition of the film backs and the interlocking mechanisms fail to work.

What I did was firstly test the battery under load and discovered that the cell was a bit low. It was a fresh battery but it is a good idea to turn the camera off after shooting in case the is a slight current draw when the camera is idle (?) . I replaced the battery and traced the voltages through the body to see if it was getting to some of the contacts such as the onces on the meter prism which has LEDs to be lighted. I also used an ohm meter to check out continuity- everything seemed to be in order. I then cleaned all the contacts including the battery terminals withl alcohol and made sure everything was dry and clean.

Now- everything works. The camera was turned off overnight and the battery has lost no voltage when tested under load..

This camera is equipped with RB lenses which have no electrical contacts and therefore the camera and lenses can't "communicate" so the meter will not work with theses older lenses.


Mamiya... • Answered on Apr 10, 2008

you'll have to contact Arcsoft for a new key after proving you own it

Photography • Answered on Apr 12, 2021


Photography • Answered on Apr 06, 2021

If this is not covered in the manual or user guide, chances are then you can't. If the images are on removeable media, then delete them on your computer.

Photography • Answered on Mar 22, 2021

take a look at SFCable, there are lots of products available as per your requirement. Visit: https://www.sfcable.com

Photography • Answered on Mar 09, 2021

The person you bought it off and certainly not us here at FIXYA dot com!

Photography • Answered on Feb 04, 2021

Have you considered consulting the manual or User Guide ? You may find that H stands for hours, M stands for minutes, and you press them until the clock displays the time you require.

Photography • Answered on Jan 15, 2021

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