I take it it's not possible to block off the light coming through the backing paper in some way? e On Feb 12, 2015, at 9:49 PM, Martin magid wrote: It was Snoopy I believe who gave me many rolls of outdated Agfa 25 120 film. This is a great film and the right speed to use in my 100+ years old No. 1 Kodak Panoram. The exposures in bright daylight are right on, developed in Rodinal. The only problem is that the numbers, circles and lines on the backing paper come through to the exposed negatives and show up on the print. Sometimes I'm able to delete the unwanted info with Photoshop, sometimes not, depending on the background. In order to minimize or eliminate that problem, I'm thinking of pre-exposing each exposure against a white wall in dim light using the cameras faster speed. There are only 2 choices of speed for the rotating f/13 lens, but I've made inserts for the lens up to f/32, and I think I should use the f/32 insert because the unwanted images come through very lightly. Does anyone have an opinion on this problem or my proposed solution? Marty