Strange change in exposure on half of negative

[airfrogusmc]

Shutter curtain bounce?

I had that happen on one of my F-1s once and it looked similar though that was a horizontal shutter, not a vert, so the line was on the narrow end of the frame instead of the wide side like yours.

 

[rick oleson]

Shutter curtain bounce?

I had that happen on one of my F-1s once and it looked similar though that was a horizontal shutter, not a vert, so the line was on the narrow end of the frame instead of the wide side like yours.

This isn't a vertical shutter either. 🙁

 

[airfrogusmc]

Always thought Leicas Ms had Vert shutter.s My digital Leicas have them.

Rick, I just read older Leica Ms do have horizontal shutters. So you were right.

This does look exactly like the shutter bounce I was getting from my Canon F-1 decades ago. The diff from my F-1 is the darker section shorter side because it is a horz shutter. I wouldn't think that uneven development wouldn't be so consistent and so straight of a line.