I have a friend who does amateur astrophotography and talks a lot about modifying DSLRs to cool the sensor and things like that. I never listen very carefully b

I have a friend who does amateur astrophotography and talks a lot about modifying DSLRs to cool the sensor and things like that. I never listen very carefully because I'm never going to devote the time and money the hobby requires, but I take it there's a dedicated community that does this kind of thing.