comp_wiz101
Compulsive Tinkerer
Well, I've noticed a light leak coming in the back of my Zorki 3 in strong light when I don't have the half-case on it, so I just took some dark yarn (from the collar of an old sweater 😉 ), "soaked" it in Silicone glue for shoe repair and pressed it into the slots. The leak was outside of the frame as well, so I'm hoping I've got it now.