FOMA 400/120 PROBLEM

[Philippe-Georges]

Recently, a problem with the FAMA 400/120 occurred, it is the first time I having this, see the attachment. It is not the first time I am working with this film.
The film is processed, as I do usually, in Pyro-HD 1:1:100, two bath fix and wash, all on SS reels. Nothing has changed, the pictures are made with a Hasselblad 500 C/M, as usual.
But, little stripes, a few millimetres long, occurs mostly on one side (the side with the name) and more or less all over the pictures. I thought it was caused by the friction by the backing paper over the emulsion or, when loading the reels, by the back (= anti halo) over the emulsion, so I was very careful to avoid this when unrolling the film for loading it on the reel, nothing changed. I can not figure it out what the origin of this problem is, any suggestions?

Philippe

 

[railwayman3]

Is the emulsion physically damaged, or are the marks some sort of fogging?

Has the film been excessively tightly rolled for some reason?
I ask because I remember my late Father having the same problem with a faulty winding mechanism in a 35mm camera, which was pulling the film while jamming the cassette spool. The layers of film were being rubbed hard against each other as the roll tightened, and the effect was similar.

 

[Jim Noel]

They certainly look like tension marks from being wound too tightly. I suggest sacrificing a roll of film to be wound through the back while off the camera so tension can be observed.