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panSpeedCalc

panSpeedCalc is a web-based tool that calculates panning speed for timelapse photography, helping photographers determine optimal camera movement parameters for smooth panning shots.

Background

- panSpeedCalc is a free web tool by photographer/developer phfx (Pierre-Henri Foulon) that calculates the correct shutter speed for "panning" shots — photos where the camera follows a moving subject (e.g., a race car), blurring the background while keeping the subject sharp. - It asks for the subject's speed and distance from the camera, then outputs a recommended shutter speed and the degree of background blur you can expect. - Panning is a classic technique in motorsports, cycling, and wildlife photography. Getting it right is tricky — too fast a shutter freezes everything (no motion blur), too slow yields a blurry subject. - The tool is used directly in a browser; no app download or account is needed.

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