SlowLightMeter
Ari Jaaksi
No ratings yetPhoto & VideoAges 4+
Get it free on the App StoreOpens Apple's App Store
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About this app
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.
What's new
Version 3.1 · Oct 27, 2026
-Polyfilm reciprocity failure added -Corrected EV display when using ND filters -Note: on iPhone SE the video window may get small, but it will not affect measurements
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