Sunny 16 - Film Meter

Sunny 16 is a film photographer's exposure companion: a camera-based light meter, a Sunny 16 rule calculator, and a zone focus tool, all in one app that works without a signal. LIGHT METER • Meters the scene through your iPhone camera and shows the EV live • Evaluative and spot metering • Hold freezes a reading while you set your camera • Choose which lens to meter with and see its angle of view • Results snap to real shutter and aperture dial positions and tell you how far off the ideal exposure you are • Auto, aperture priority, and shutter priority modes • Match the app to your camera's shutter dial: modern full stops or the classic older series SUNNY 16 CALCULATOR • Pick your lighting condition, ISO, aperture, and shutter speed • Viewfinder-style meter shows exposure deviation instantly • 20 lighting conditions from bright snow to moonlight • Auto fills in the missing setting for a correct exposure ZONE FOCUS • See the sharp zone for your focal length, aperture, and focus distance • Point the camera at the ground to estimate subject distance in the live view • One tap to set focus at the hyperfocal distance • Focal lengths from 21mm to 50mm, in feet or metres APPLE WATCH • Sunny 16 calculator on your wrist for quick checks in the field Works completely offline. No account, no tracking. Full Access, a one-time purchase, unlocks indoor and low-light conditions, spot metering, and aperture and shutter priority modes in the Light Meter. Everything else is free.