Skiing
Also known as: alpine skiing, ski
Descending snow on skis, which covers everything from piste laps to backcountry lines and brings one constant problem: brightness.
Updated
What it means
Skiing covers several quite different situations. Resort laps, park riding, Ski touring and Backcountry lines share equipment and share very little about how any of them are filmed.
The constant across all of them is exposure. A white slope fills the frame with brightness, and every camera on automatic underexposes the one dark thing in the picture, which is the skier.
The second constant is cold. Batteries, lenses and housings all behave differently below freezing, and planning for all of that matters considerably more than any choice of camera does.
How it works in practice
A fixed exposure and a locked white balance beat anything automatic. Snow defeats both systems, so a value chosen once for the conditions produces a session that matches rather than drifts.
A low angle from the side shows the spray. A camera at snow level as a turn passes produces the image people remember, where the same turn from above reads as a traverse.
A polarising filter does real work here. Polarizing filter (CPL) cuts the glare off wet snow and brings back the texture, which is otherwise lost to a uniform white surface.
What to watch out for
Flat light removes everything. An overcast day on snow gives no shadows and no contours, which produces footage where the slope and the sky are the same shade and nothing reads at all.
Snow in the lens between runs is constant. Spray from a stop, a fall or a lift queue all put snow on the glass, and a wipe with a cloth before each run is the only habit that works, since no Sharpening recovers a smeared frame.
Mounted footage flattens the gradient badly. A wide lens on a helmet makes a steep pitch look like a gentle slope, so an angle from the side is what conveys what anybody was actually skiing.
How RawClip handles it
Snow material is brought to a consistent exposure and colour during assembly, which handles a session shot across changing light. Clips where the skier is badly underexposed against snow lose to better coverage, so a fixed setting at capture shows up directly in the result.