Oldwino wrote:
You should report this to Foma, with the film’s lot number. They obviously have a serious defect in the backing paper, and it will (maybe) help them track it down. Also, I remember a few years back when Ilford/Harmon had this issue, they were great about sending out fresh film as a compensation.
They have been sending replacement rolls. Reportedly they have finally solved the problem and new batches should no longer have these issues but I don't know what expiration date to look for. Fomapan 400 and 100 in 120 are sold out at all the camera stores in my city and I suspect they are waiting for Foma to ship these new batches.
For what it's worth, Foma Ortho 400 doesn't have these problems and unlike Fomapan 400 it's a true 400-speed film. But in 120 format it is really curly; I remember having a hard time scanning the one or two rolls I shot in 120. It's fine in 35mm.