Has anyone attempted to roll 46mm film in 120 backing paper? I was thinking it would allow me to shoot 645 negatives on my Bronica S2A. The issue would be that the sides of each frame of film would not rest against or be supported by anything in camera, so there is a risk of curl. However, the top and bottom would be. I have 500 feet of 46mm film. Worth a try?
Then make 127 film rolls?
I did slit 70mm to 46mm and then roll it to 120 backing just for exposure tests. It is hard to centre it to middle of the 120 roll. You will not have idea where you left and right edge of the picture are, unless you align it just to one side. Or make some kind of jig to help you in the dark?
I roll 35mm film in 120 rolls to make "Sprocket" Panorama shots. Most are shot at infinity and small apatures, and seem pretty sharp, even in 11 X 14 prints. Certainly worth a try. Of course, the other option is to just use 120 film and crop down to the format you want.
I'm going to make a jig. Pretty simple -- a piece of wood with sides 61mm apart that the backing paper can lay in, and a stick 15mm wide to lay against one side shoud do it. Align the film against the stick and start rolling. Should be worth a shot!