Quote Originally Posted by Thomas Wilson View Post
..It makes me want to buy an old chest freezer and line it with lead. Seriously...
Lead won't do you any good. Seriously. The cosmic radiation that fogs film passes right through lead. You'd need many feet of earth to attenuate it sufficiently and then would also need to be away from radon gas.

Quote Originally Posted by Thomas Wilson View Post
..5x7 film is tough enough to find now, and it's not going to get any easier.
It's not really tough to find 5x7 film now. What are you looking for that's sold in 4x5/8x10 but isn't available as 5x7?