It's a fairly common problem: while removing or inserting the dark slide, the film holder moves, and briefly breaks the light seal. All it takes is a fraction of a second and the slightest gap, and we get fogging in a corner of the image.
(It's helpful to make sure that the dark slide moves as smoothly as possible. To this end, I have been waxing my dark slides lately, since all my film holders are rather old.)
Some cameras have a bail back, or a levered back. This allows for the spring to be stronger, and therefore press the film holder with greater force. Even with that, one can still experience the problem.
Is there some kind of simple clamp that we could use ? Once the film is in the camera, lock the clamp. Then remove the dark slide, shoot, and replace the dark slide. Then unlock the clamp and remove the film holder.
Such a clamp has to be lightweight but strong. On wooden cameras, it can't damage the wood. And it has to be affordable and readily available.
Any suggestions ?
Bookmarks