Minimal Light Meter vs SlowLightMeter

A focused light meter for film photographers who want exposure details without the clutter. Point your iPhone at the scene, lock aperture or shutter, and get a clear reading you can trust on set or in the field. Dim the live preview when you need the numbers, not the viewfinder, and set any ISO, including odd ratings for old or expired stock. Features • Reflective light metering with your iPhone camera • Aperture or shutter priority. Lock one, meter for the other • Dim the camera preview to keep attention on exposure • Fully custom ISO, including non-standard film ratings • Add or hide shutter speeds and f-stops to match your kit • High-contrast text for bright outdoor shooting • Fast, minimal interface with no accounts or ads • Works offline, on device Built for analog shooters, Instant film, and anyone who still dials exposure by hand.

As a film photographer, I wanted an accurate yet simple reflective and incident light meter. After trying several, I decided to build my own. This light meter continuously measures light, so it requires minimal interaction during a shoot. To avoid accidentally changing film ISO, I added an ISO lock. And since I shoot often with my Hasselblad, I made EV values a core feature of the app.