I'm planning to be out of town for a few weeks and I'm starting to feel nervous about leaving some of my gear in the heat. We live on the top floor of a 1930's apartment building and it easily hovers around 90 without ac and probably gets up to 105+ on hotter days. We normally use window ac's but leaving them on is not an option really. I'm moving my film archive to a place that has ac, but there's no room for the gear there. Mainly I'm worried about the lube in my Hasselblad and Schneider lenses I guess. I would also not like to find all the leatherette peeling off or stupid cosmetic stuff that would be a pain to deal with. I know it's not like locked-in-a-car heat, but still, is 90-100F for two weeks a big deal?