Use the filters you own
Combine standard or custom ND strengths and compare exposure settings.
ND Exposure Calculator
Turn your meter reading and ND filters into a saved exposure plan for water, clouds, motion, and light trails.
View on the App StorePaid app. All listed features included; no subscriptions or in-app purchases.

Combine standard or custom ND strengths and compare exposure settings.
Look for filter combinations close to a desired shutter time.
Save setups and notes, share a recipe, and use the exposure timer.
Before you begin
Take the base meter reading without the ND filters being calculated. This app does not measure light or control the shutter. Keep it open during preparation and restart if you miss the cue.
See current pricing, purchase options, and device compatibility on the App Store.
View on the App Store