Canon LTM Canon 7 light leak?

Canon M39 M39 screw mount bodies/lenses

Tpopps

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Hello, I think I have exhausted my search in the forums. I have a canon 7 and have put a couple rolls through it with no issue. On the most recent roll I have what looks like a light leak down the middle of the frame. Only on the first few shots. The rest are fine. What do you think caused this?
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Looks like it could be a leak at the hinge side of the door.
Did you develop the film yourself?

Phil Forrest
 
Yes, I did develop myself. Was wondering if by chance the film was touching. Like I said it is just a couple frames at the beginning and there is one toward the middle that is slightly the same. not as pronounced as the ones in the first couple frames
 
Looks like it could be a leak at the hinge side of the door.
Did you develop the film yourself?

Phil Forrest
es, I did develop myself. Was wondering if by chance the film was touching. Like I said it is just a couple frames at the beginning and there is one toward the middle that is slightly the same. not as pronounced as the ones in the first couple frames
 
Canon Model 7 light leak

Canon Model 7 light leak

Ok, I did a test and cannot reproduce the "leak". I used delta 3200 and took shots right at my bright kitchen light. No marks. I shined a bright flashlight into both sides of the film door. Nothing. I shined a bright flashlight all around the base of the lens. (tried all my lenses at all apertures) Still nothing. Shined a flashlight all around the entire camera while taking picture of the bright light in the kitchen. Still nothing. At this point I am assuming I did not shut the film door tight.
 
I've been seeing a leak very similar to the one in the top left-hand corner of your pictures with a Canon P. It actually turned out to be caused by miniscule pinoles in the first curtain of the shutter blind, along the edge where the lath is joined. The pinholes were easily visible if I held the open camera back up at a very strong light (or the sun) and watched the blinds moving through the lens mount as I cocked the shutter. The fogging was happening as I wound the film on, with no lens cap on the lens. It's the first time I've ever seen anything like that with a metal shutter curtain but for the time being, and I've no idea how long this will last, a tiny dab of flexible fabric paint over the pinholes on both sides of the curtain seems to have stopped the fogging. (The hinge seals were leaking light too...)
 
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