Cinematic Exposure Calculator

Convert - Calculate - Create!

Calculation tool for cinematographers, gaffers, camera assistants, film students and film industry professionals.

Seamlessly convert your light values between f-stops, lux, FC, exposure values and more.

Keep track of camera filters, push/pulls, and how it effects your exposure.

Download on the App Store
Lumenary App Interface

Key Features

Light Unit Conversion

Flip your light values between F-stop, T-stop, EV (exposure values), lux, lumen, and FC (foot candles). Instantly convert readings from your light meter, determine T-stop on vintage lenses, evaluate gear specs, and calculate lighting needs.

Settings & Modifiers

Full control over all critical camera and lighting parameters.

Stack camera filters, manage push/pull, and set custom shutter, ISO, transmission, and more for precise, real-world results. Be faster on set when calculating multiple filters, push&pulls, extenders or other modifiers.

Convert shutter angle to shutter speed, and vice versa.

Formula Transparency & Results

See the math behind every calculation. View complete exposure formulas, track modifier effects, and get clean results for F-stop/T-stop.

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