Indeed, the USER MANUAL is your best friend, but let me help u out a little:
I used to have the S2 IS and used it when it was around -5 to -10 deg C. not a prob.
Condensation unlikely to be a problem as the humidity is likely to be low.
I mean, why would your indoor humidity be so much higher than outdoors?
Condenstion is only a problem in countries when indoors are COLD (due air con) and outside env is humid, or more generally speaking, u move from a cold env to a warmer more humid env.