Exposure Calculator - Donate

Calculate equivalent exposures - Donate version.

This is exactly the same app as the free one. If you haven't tried that one yet, please install it and take it for a spin. Afterwards, if you think it is worth 3 Euros, feel free to come back here and install this one.

Given an exposure (Aperture, Shutter speed, ISO), allows calculating equivalent exposures - set 2 new parameters (a combination of Aperture, Shutter and ISO) and the 3rd parameter is automatically calculated.

It is also possible to add 1 to 3 ND filters of up to 30 stops each to the calculations, handy for those long exposure photographs to blur water and clouds.

The app also includes a timer for exposures of 4 seconds or longer.

Main features:

 • calculates Shutter, Aperture or ISO

 • aperture range from f1.0 to f360

 • shutter range from 480s to 1/16,000s

 • ISO range from ISO 0.4 to ISO 3.2M

 • ND filter up to 30 stops, in 1, 1/2 or 1/3 stop increments

 • up to 3 stacked ND filters

 • ND filter modes: stop, density, ND number

 • bulb mode (up to 24h)

 • reverse filter search mode

 • ND filter calibration mode

 • timer for exposures of 4s or longer with alarm

 • night mode with 4 overlay colors

 • optional compensation wheel to account for reciprocity failure

 • unlimited number of presets

 • free and ad free

 • privacy - the app does not collect any personal data

A review of the app is available on this blog post: http://www.craigrogers.photography/?p=2548

Note: in the Shutter settings section there is a switch tor camera type. This switch simply selects how a small set of shutter speeds around 1 second are displayed, choose the one your camera adheres to. Exposure calculations work for all camera makes, this switch is simply for display purposes.