4.4
27 reviews
1K+
Downloads
Content rating
Everyone
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About this app

Bellows Factor can help you to achieve better if not perfect exposures with large format cameras.

The basic operation includes calculating the bellows factor in EV based on your focal length and lens extension. These values can be inserted in either millimeters, centimeters or inches depending on the lens or the photographers' preference. But that’s not all. Bellows factor can be combined with any number of filter factors so a correct exposure factor is computed based on the lens extension and filters used.

The Bellows Factor application comes with the predefined set of well known photographic filters and their EV factors that you can modify and customize based on your own collection of filters because we know, that every photographer has their own selection and favorite combinations of filters.
Updated on
8 Jun 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Ratings and reviews

4.4
27 reviews
Curtis Nelson
25 January 2023
Very nice unobtrusive little app. No ads! I like that the exposure factors are displayed in EV - this pairs very nicely with my spotmeter when calculating exposure. Thanks!
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Stephen Migol
3 November 2022
Easy to use in practice and has helped nail exposure with film that doesn't have a lot of latitude.
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Lucas Garcia
4 September 2024
Complete and functional. Nice to have in the field.
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What's new

- Storage access permission removed
- Fixes & improvements