Nathan, check my comments about the felt seals below the pressure plate.
No seals on this one. Interestingly, instead of circular holes, the pressure plate has U-shaped cutouts that go all the way to the edge---an economy measure, I suppose; if I keep having problems, maybe I should attach a strip of felt or velvet along that edge.
San Diego, CA, USA
The lady of the house has to be a pretty swell sort of person to put up with the annoyance of a photographer.
-The Little Technical Library, _Developing, Printing, And Enlarging_
Well, I guess I brought myself bad luck by commenting on this subject; I just got a roll of slide film back, taken with a 1930s Wirgin folder, and there are noticeable light leaks at the edge of some frames from the red windows!
I've used this same camera a zillion times in much brighter conditions without a problem, so I suspect I loaded it just a little off alignment or something like that. (The light looks like it bled around the edge of the backing paper rather than "burning" through it.) I need to eat my words about *never* having had a problem, though.
That could just as easily have been from the roll not winding tight enough on the takeup reel. Many cameras have a spring that drags the back of the takeup roll to alleviate this problem.