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.

Daniel.
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....