Light Meter: Middlegray

Middlegray is a light meter for film and digital cameras. Point your iPhone at the scene, and it gives you the shutter speed or aperture to set for the ISO you choose. BUILT TO STAY LIVE Readings update live while you meter. If the camera feed stops, the reading clears and a restart button appears, so a stale reading doesn't sit on screen looking current. If the camera pauses, for example because another app is using it, Middlegray tells you why. A held reading stays on screen even if the camera stops. METERING • Aperture priority or shutter priority • Tap the preview to meter a small spot, or tap Average to meter everything the preview shows • Hold a reading while you set your camera • Each reading shows whether it is still settling or steady • The screen stays awake while you meter • "Too dark" tells you when the light is below what the iPhone camera can measure YOUR STOPS, YOUR…