About mmCalc
mmCalc is a super simple photography focal length calculator. Simply input your focal length, sensor size, and max aperture and we'll give you what the 35mm equivalent is of that configuration. If the simple calculator...
mmCalc is a super simple photography focal length calculator. Simply input your focal length, sensor size, and max aperture and we'll give you what the 35mm equivalent is of that configuration. If the simple calculator doesn't suit your needs, we also offer calculators for crop factor based on sensor size and completely custom lens + sensor crop factor calculations.
mmCalc also provides calculations for medium format and large format sensor sizes.
Jun 15, 2018
Version 1.3
This app has been updated by Apple to display the Apple Watch app icon.
Fixed a bug where clicking "Show Lens Modifiers" would instantly open the teleconverter input.
Previous Versions
Here you can find the changelog of mmCalc since it was posted on our website on 2021-12-16 07:55:30.
The latest version is 1.3 and it was updated on 2026-06-09 16:43:04. See below the changes in each version.
mmCalc version 1.3
Updated At: 2018-06-15
Changes: Jun 15, 2018 Version 1.3
This app has been updated by Apple to display the Apple Watch app icon.
Fixed a bug where clicking "Show Lens Modifiers" would instantly open the teleconverter input.
Disclaimer
Official App Store Link
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