I think I'm having problems with light leaks in my 5x7 gear, but I'm not positive where they are coming from. On two negatives I have what looks like overexposed spots...covering the small area like fog. At first I thought perhaps it was the film holder, but the exposure pattern is exactly the same on both negatives, which would mean both sides of the holder would have to be flawed in exactly the same way on both sides...not likely. So then I'm thinking that its the way this holder was sitting, or sits, in the camera since the leak is at the very edge and goes inward about a cm or less. Does this sound about right? Anything I can do to correct it, or will I just have to toss the holder? thanks!