Reciprocitize
Long Exposure Timer for Film
0 ratings
Archived App (Last seen on 12 Oct 2025)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
Reciprocitize is a tool for long exposures on film or digital with reciprocity correction and filter offsets to remove the mental math and make your life easier!
The app includes corrections for the most common Foma, Harman, Ilford, Kentmere, and Kodak film stocks. There is also a custom mode where you can set your own values if using a film that is not included by default. If your don't need reciprocity correction, when shooting digital for example, simply disable it with the button in the top left.
Reciprocitize also features a filter correction setting where you can take away the mental math and quickly get your adjusted exposure when color or ND filters.
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What's New in Reciprocitize
1.1.0
October 25, 2024
- Film visibility will save before exiting settings. - Use formula instead of P-Factor where applicable. - Add haptics when interacting with certain fields. - Add Kodak T-Max 3200 - Add Arista EDU Ultra 100 - Add Arista EDU Ultra 200 - Add Arista EDU Ultra 400 - Add Generic Slide Film
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