Transport lines

[pixman]

Hi, I am getting lines on my pictures which are obviously due to a problem with the rails that the pressure plate holds the film against. Can anyone tell me what is happening and how I should fix it please? Rod

 

[pixman]

Hi,
It has happened on films developed at two different labs. Rod.

 

[Sonnar Brian]

Is it also occuring between the negatives, ie outside of the image area?


Take the lens off; fire the shutter at a slow speed. Anything strange going on inside the film chamber? Could a piece be dangling from the first shutter curtain, shortening the exposure?