4:2:0 should be adequate. If you’re shooting skiing then you don’t get any more exposure latitude from 4:2:2 and color contrast should be pretty strong against snow.
I would shoot 50i. 50i and 60i is common for sports broadcast because you get greater temporal fidelity (more slices per time than progressive footage).
In terms of shooting outdoors in the snow, make sure you have ND filters and polarizers. Shooting outdoors in the cold, be prepared to have extra batteries. As temperature falls, the internal resistance of a batter rises, so it’ll die more quickly.
Watch out for condensation, ease the transition from indoors/outdoors and from closed case to open case to let the camera acclimate.
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Angelo Lorenzo
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