iPhone Light Meter

Read the light.

A precise, pocketable light meter for film and analog photographers. No accounts, no cloud - every reading stays on your iPhone.

LuxLab app screen - EV 13.0
Download on the App Store
The Instrument

The whole meter, in your pocket.

Point, meter, shoot. LuxLab turns your iPhone camera into a calibrated reflective meter that reads any scene in an instant - EV, brightness, and a full exposure triangle at a glance.

ReflectiveSpotEV readout
f/5.6 · 1/1000 · ISO 400 · EV 13.0

Capabilities

04 / Core
01

Built for film

Made for analog photographers who meter every frame by hand - calibrated for negative and slide.

02

Exposure values

Aperture, shutter, and ISO solved instantly from any scene, with full and fractional stops.

03

Spot metering

Tap to meter a single point with precision, then lock and recompose with confidence.

04

Zone system

Place any tone exactly where you want it with a clear EV and zone readout.

Now on iOS

Light, measured.

A precise light meter for film and analog photographers - every reading on your iPhone, nothing in the cloud.

Download on the App Store