Slate Clapperboard

Slate Clapperboard turns a foldable iPhone into a film clapperboard. Hold the open phone up to the lens like a hardware slate: colour-bar clapper sticks across the top, SCENE and TAKE in huge type on one half, and a glowing red LED timecode with roll, camera, production, date, sound and director on the other. Nothing on the board crosses the fold. Then snap the phone shut. That is the clap. When you snap the phone shut, the closing phone is your visual mark and the sound is your audio mark: a wooden clack with a 1 kHz sync tone that starts at the same instant. Slate gives a firm haptic tap and logs the take with its timecode and wall-clock time, and the cover screen, now facing the camera, shows the take you just slated marked in green, with the timecode frozen at the clap and an UNDO key. Open the phone again and the take number flips to the next take. Clap again within six seconds and…