Quote Originally Posted by snaggs View Post
My friend has a lab so I can store some film at -80c for nothing, or -77k for about $150 a year to cover LN2 consumption. Anybody else looked at this? What do I use for radiation? Are full lead containers required? I wont be stored with the nuclear isotopes but in the bio storage, so im only concerned with background radiation.

The only real issue with extreme cold is that it takes a lot longer to come up to normal temperature and it's a lot more fragile until it does. At -15℃ you need to be careful winding film because it can break in the camera. At -80℃ a roll that gets dropped could shatter. BTW the coldest that LN2 can make something is 77K because LN2 itself boils at 77K and freezes at 63K....