Just to expand on the discussion a little...(posted 8305 days ago)Sealing 120 roll films has always worried me. The glue that sticks the paper down/around seems to be pretty good, but if it ever lets go your film will be stuffed. Always possible when trying to change rolls in a hurry! What I do is I keep a supply of small rubber bands in my bag and add one for insurance. Also, if you away from home for days/weeks, having something nice and solid to keep exposed rolls in is a good idea. I've seen some very nice machined aluminium canisters for 120 roll film but they were quite expensive. I have some M&M (sweets) containers that hold a roll but they are not light proof (might be water proof though.. the lids snaps shut pretty well, must test that!), just a bit of protection from bumps.