Fotometria

A reflected light meter with spot metering (using the device's camera) and an incident light meter (using the device's light sensor) in one app. Tested accurate against Gossen and Sekonic meters on most devices. Can be used for any type of camera from film SLR to pinhole to cinematographic.

‎The light metering tool for every great image maker. Use the standalone app as a reflective light meter or use it in combination with Lumu Power hardware for professional Flash and Color Temperature measurements. Lumu Power is an easy-to-use digital incident color and light meter that works seam...

‎Lux turns your iPhone or iPad into a professional-ready and convenient light meter for film photography. The first light meter on the App Store to use metering data directly from the camera sensor. Note: Lux is designed for use with a separate camera. This app does not take digital photos.