FilmRecip
Film reciprocity calculator
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Meter a long exposure, pick your film, and see the reciprocity-corrected time and how much to add — 40 stocks, sourced from manufacturer datasheets.
See the real exposure time before you open the shutter. Meter a long exposure and pick your film — FilmRecip shows the reciprocity-corrected time and how much to add, using each manufacturer's own published correction model.
FILM STOCKS
• 40 black & white, color negative, and slide films from Ilford, Kentmere, Kodak, Fujifilm, Foma, CineStill, Rollei, Adox, and Bergger
• 33 use official manufacturer datasheets, transcribed value by value
• The rest are clearly labeled: manufacturer general guidance, or a community t^1.3 estimate where nothing is published
THE CALCULATION
• Enter the metered time in seconds, m:ss, or h:mm:ss
• See both numbers a chart can give you — the total corrected exposure AND the time to add — so you never apply the wrong one
• Stops of correction shown alongside, for filter and aperture adjustments
• Every result is labeled with its confidence — official datasheet, manufacturer guide, extrapolated, or community estimate — with a link to the source document
RESULT CARD
• A clean, shareable card with the metered time, corrected time, added time, and stops
HISTORY
• Every calculation you commit is logged automatically and free to browse
FILMRECIP PRO
Calculating and logging are free, forever. A one-time Pro Lifetime purchase unlocks the shareable result card, favorites, and CSV export of your history. No subscription, no renewal.
PRIVATE BY DESIGN
No account. Your calculations stay on your device. FilmRecip is a calculation aid built from published manufacturer data — actual film response varies with temperature, developer, and batch. Bracket exposures that matter.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Ryosuke Igarashi, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ryosuke Igarashi
- Size
- 2.1 MB
- Category
- Photo & Video
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 12 more
- English, Dutch, French, German, Italian, Japanese, Korean, Polish, Portuguese, Simplified Chinese, Spanish, Swedish, Traditional Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- FilmRecip Pro $7.99
- Copyright
- © 2026 Ryosuke Igarashi