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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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