It looks more like a malfunctioning focal plane shutter than a light leak. Shutter stalls just before closing so that strip at the top ends up over exposed. Also note in your first pic that there is shake at the top of the pic that isn't evident lower down? All points to that area getting more exposure, ie image forming light rather than a leak as such.
Perhaps you're right... the shutter bounces a bit on closing on the A tension... Which would explain the consistent size of the exposed strip on the image, and why I only get it on the A tension. Why is this, and how can I prevent it?
Last edited by EASmithV; 02-06-2013 at 07:00 PM. Click to view previous post history.
Now, that I can't tell you..... but I'll bet there is some adjustment in there and you'll get an answer over at graflex.org if not here.....
Good luck with it!!
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I just checked my Pacemaker speed... The shutter curtain on it when set to a similar tension also bounces slightly, however, it seems like it is wound far enough into the body by the time the travel stops that when it bounces it avoids exposing any film.
I also discovered something interesting... With the rotating back set at a 45* angle, i can see a little bit into the bottom of the camera. When the curtain ceases it's travel, it is not far traveled into the camera body at all. In fact, it's travel stops at the free spinning roller inside the back. When it comes to a stop, it bounces, exposing the film. However, when it has come to rest and finished bouncing it has returned to its original position with the metal lip of the shutter opening resting on the metal roller. But then, when you bring the mirror back down again, the shutter drops into the camera to the point where the metal lip is much further below the roller.
However, even when it is set so that the natural resting place is where the metal lip is below the roller, by winding it by hand and releasing it, it still bounces up above the roller and to the point where it would re-expose the film.
Last edited by EASmithV; 02-06-2013 at 09:02 PM. Click to view previous post history.
Strange Light Leaks... Help?
It's broken you should get rid of it and send it to me for the cost of shipping...
Mamiya: 7 II, RZ67 Pro II / Canon: 1V, AE-1, 5DmkII / Kodak: No 1 Pocket Autographic, No 1A Pocket Autographic | Sent w/ iPhone using Tapatalk
Anyone know where to get a manual for disassembling this camera?
before you disassemble
does mirror locks up all the way
sometimes they dangle and obstruct
make sure there isn't a problem with your film holders too
take a regular unslotted holder and tape it ( masking tape ) to the back
shoot a paper negative ..
tape a sheet of waxed paper on the back and focus on it like ground glass
so you might see what is going on with the lens on B ... flip the switch
and flip up the mirror ..
ps. what does the seller say? did he/ she know about this strange problem?
Last edited by jnanian; 02-07-2013 at 09:11 AM. Click to view previous post history.
The mirror swings free and clear. Everything is crisp and snappy except for the bounce of the shutter on the A tension. When shot at other speeds, its yielding a good negative.
I have not contacted the seller, but seeing as he is on APUG, he may find out presently anyway.