Thinking of going back to siberia this winter to get some cold weather shots (and bringing the 5d iii)... anyone have experience with shooting canon gear at -30 and below?
i've shot Nikon at -25c at Harbin China, not all that far from siberia
and it started having issues at around that temp
not autofocusing correctly, and freaking out not writing images
mind you this was after quite a few hours out in that temp
I kept cycling batteries into my inner shirt to keep them warm and kept the lens tucked under my armpit to try keep it from getting too cold too so the AF gears didnt sieze up I guess they have some light machine oil in them which might be close to freezing around there.
the snow and ice festival is amazing and there is a tiger sanctuary (like an african game park) with over 900 tigers! you drive around in an armoured bus
Was in Canada a couple of years ago, taking pics when it was -24°c with a Canon 450D and kit lens... both held up fine, being dragged around all day, in and out of cold/heat... even though its isn't meant to be used below 0°c... you'll be fine! Have fun!