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04-07-2021, 05:28 AM   #1
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PENTAX 67 Mirrorlockup open shutter curtain

Hello I have a pentax 67 and have been using for a while and now detected this issue with the mirror lock up.

I processed 4 rolls of 120 and found that 80% of the pictures were overexposed, I was very careful with the exposure and even wrote every setting for every picture and clearly all pictures taken with MLU were vastly overexposed / unusable. This was the first time i used the mlu function consistently because i was doing landscape and wanted to have images as sharp as possible.

Then I dry fire the camera to check what was happening and the MLU option is locking the mirror but also opening curtains thus exposing film. I guess its a camera fault or maybe i am doing something wrong .

Any help / guidance is appreciated.


04-07-2021, 11:27 AM   #2
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First thing would be to check and replace the camera battery, if they are low on charge there can be 'interesting' behaviour
04-07-2021, 12:21 PM - 1 Like   #3
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Hello NZ_Ross! thank you for your reply.

Already tried new batteries, did the dry fire and the issue persists!

04-10-2021, 03:40 PM   #4
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The P67 is not designed to dry fire like a 35mm film camera and you need to follow specific steps if you do:

Check out the manual via the above link and see if it helps.



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