Stops — Film Light Meter

Stops is a light meter built for film photographers — fast, accurate, and honest about what it measures. Point your iPhone at the scene and read the exposure the way a dedicated meter would: a clean instrument dial, the full shutter / aperture / ISO triad, and an EV readout you can trust. The reflected, averaged meter is free, forever — no trial timer, no paywall on the one thing a light meter is supposed to do. Go further with Stops Pro (one-time purchase, no subscription): - Spot metering — tap any detail to meter a 5% area - Exposure lock — hold a reading while you recompose - Roll logbook — note every frame, then export the roll as a PDF - Reciprocity — long-exposure correction with a per-film curve - ND calculator — dial in any filter and read the corrected time - Sunny 16 — a quick daylight sanity check, free forever - Film profiles — push/pull and reciprocity, saved under your own names Built for how film actually works: - Aperture or shutter priority, your choice - Third-stop precision, snapped to real f-stops and shutter speeds - Calibration offset to match your meter or your camera - Made for 35mm and medium format alike Private by design: Stops reads light through the camera live. Nothing is photographed, stored, or sent — ever. No account. No ads. No subscription. Just a meter that respects your film and your time.