FSU Zorki/Zenit etc shutter not capping

StepheKoontz

Member
Joined
Dec 4, 2018
Messages
801
Location
Doraville
Format
Medium Format
Just wanted to share this info. I first ran into this problem with a Pentacon 6 years ago, then today ran into it with the first roll of film I ran through a Zenit-1 I fixed some film transport issues with. Obviously this shutter problem could be repaired, but the work around is simple enough I don't bother if the shutter otherwise works OK.

The problem is: there is a tiny gap between the shutter curtains when you wind the camera. On a lever wind camera it makes these weird streaks that look like the shutter is banding. On a knob wind camera, you end up with random vertical lines on the negative, in the places you pause the gap as you wind the knob. On this Zenit, they are on every negative but in different places.

The work around? Simply cover the lens when you are winding the camera. Here is an example of what this looks like in case you even run into this, and another shot with the same camera taken later just covering the lens with my hand while winding. Never seen this except on old soviet cameras but it's not a deal breaker if you know this is the problem and cover the lens when winding.



 

David Lyga

Member
Joined
Nov 25, 2007
Messages
3,445
Location
Philadelphia
Format
35mm
I have a Pentax H1a with the same damn problem. Theoretically, all I would have to do is move the apron strings of the first curtain further along the shaft only about 1 mm and the problem would be solved. But, I cannot access these strings, so than I am left with Stephanie's work-around. Because the film advance is not 'with pauses' like with a knob, the light leak (not as frequent because the mirror helps to cover the light) is spread out more, thus manifests only when the lens is pointed at intense light.
 
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