# f/ Tools — Best photography calculator > Photography preproduction tool with calculators for depth of field, resolution, and exposure. (iPhone/iPad app by David Quiles.) - Source: https://appshunter.io/ios/app/f-tools/id668237473 (this page in markdown: same URL + `.md`) - Developer: [David Quiles](https://appshunter.io/developer/578971109) - Category: Photo & Video, Utilities - Price: $3.99 (on sale, was $4.99) - Rating: 3.70/5 from 6 App Store ratings · 14 written reviews indexed - Age rating: 4+ - Requires: iOS 15.6 · 12 MB - Languages: American English, European Spanish, Italian, German (Germany), Chinese (Traditional, Taiwan), Chinese (Simplified, China), French (France), Japanese - Released: 2013-07-08 - Data updated: 2026-08-25 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/f-tools/id668237473/reviews.md ## What is f/ Tools? f/Tools is a set of tools for digital and analog photography. Explore sensor sharpness, depth of field, print resolution, bokeh size, flash exposure, and more — all in one place. Designed to help you visually understand complex photographic concepts, with built-in help and a glossary. Features: • Graphic depth of field calculator • Graphic Airy disc calculator • Graphic format (scene/print) calculator • Motion freeze calculator • Graphic blur size calculator • Graphic flash exposure calculator • Camera bag with lens limits • Quick setup with popular camera brands included ## Key features - Graphic depth of field calculator - Graphic Airy disc calculator - Graphic format calculator - Motion freeze calculator - Graphic blur size calculator - Graphic flash exposure calculator - Camera bag with lens limits ## Recent user reviews (10 of 14) All indexed reviews: https://appshunter.io/ios/app/f-tools/id668237473/reviews.md ### 5/5 — Like *2026-06-15* Simple, straightforward, and super useful. ### 5/5 — Very useful app *2026-06-07* Easy to use and full of useful tools and options for the ambitional photograph who does not want to make only automatic snapshots with his camera. ### 5/5 — Superb photographic calculator *2026-01-13* Most photographers know that a wide open aperture is one of the things (along with focal length and camera-to-subject distance) that reduces depth-of-field. And that this can be used for creative effect. This handy calculator lets you explore the effects with different lenses and cameras. But did you know that diffraction effects at small f/stops significantly reduce the effective resolution of your high megapixel sensor? This is brilliant app from David Quiles really helps hone and fine-tune your understanding of the way your lens(es) and film or digital sensor(s) turn light into images. Bravo David. PS: I wish the lenses and cameras could be resorted in the lists. I don’t necessarily want a new entry to appear at the bottom of the list! ### 5/5 — Awesome Tool ! *2023-02-15* No more charts, calculation, conversion or guessing. All the photo planning tools are now at my fingertip, instantly. Marvelous ! ### 5/5 — A helpful tool and competent support *2022-01-12* A comprehensive and very useful tool for all photographers. The developer's technical support is fast and qualified. ### 5/5 — Few years later and still love it! *2021-05-21* Well made and very useful. ### 1/5 — Crashing all the time - waist of time and $1 *2020-10-11* Crashing on most of tools and pages. ### 5/5 — Semplicemente stupenda! *2019-09-20, version 2.2* Era davvero una cifra di tempo che cercavo un’app semplice e pratica da usare per quando scatto in analogico o comunque in manuale. Bhè questa è straordinaria! Pratica, semplice e completa. Con un layout minimale ed intuitivo ti permette di giocare con la terna focale/distanza/apertura mostrandoti al volo pdc, iperfocale ebokeh, ma anche molto altro... Ed è anche disegnata in modo molto carino, vintage ed intrigante! ### 5/5 — Great App *2019-07-24* I’m relatively new to photography so this app has been a life saver and a learning tool. I highly recommend it to anyone trying to take the best picture they can. ### 5/5 — Perfect! *2017-09-22* The best of! ## Frequently asked questions about f/ Tools ### What is f/ Tools? f/ Tools is a photography preproduction tool that provides a set of calculators for various photographic concepts. It aims to help users visually understand complex ideas related to sharpness, depth of field, and exposure. ### What kind of calculators are included in f/ Tools? f/ Tools includes graphic calculators for depth of field, Airy disc, scene/print format, motion freeze, blur size, and flash exposure. It also features a camera bag tool with lens limits. ### Is f/ Tools suitable for beginners? Yes, f/ Tools is designed to help users visually understand complex photographic concepts. It includes built-in help and a glossary to assist users of all levels. ### What devices does f/ Tools support? f/ Tools is available for iPhone and iPod devices. It is compatible with iOS devices. ### How much does f/ Tools cost? f/ Tools is a paid application priced at $4.99. There are no in-app purchases or subscriptions required after the initial purchase. ### When was f/ Tools last updated? The latest version of f/ Tools, 2.3.1, was last updated on March 27, 2026. This indicates a recent focus on maintaining and improving the application. ### What is the user rating for f/ Tools? f/ Tools has a user rating of 3.8 stars based on 5 ratings. This suggests a generally positive reception from its user base. ### Does f/ Tools have ads? No, f/ Tools does not contain advertisements. As a paid application, it offers an ad-free experience for its users. ## Version history (last 5 releases) ### 2.6.2 — 2026-08-13 Added support for multiple languages Bug fixes ### 2.6.1 — 2026-08-05 Improvements to the format calculator Bug fixes ### 2.6 — 2026-08-05 Added button to open my Lightmeter PRO New icon ### 2.5.2 — 2026-07-08 Improvements and bug fixes ### 2.5.1 — 2026-06-25 Bug fixes and minor improvements ## Apps similar to f/ Tools | App | Rating | Price | Category | | --- | --- | --- | --- | | [Frames: Film Photography Log](https://appshunter.io/ios/app/frames-film-photography-log/id6744057317) | 5.0 (6) | Free | Photo & Video | | [Reciprocity Timer](https://appshunter.io/ios/app/reciprocity-timer/id459691262) | 3.0 (3) | $1.99 | Photo & Video | | [Light Meter by WBPhoto](https://appshunter.io/ios/app/light-meter-by-wbphoto/id1524189195) | 4.4 (41) | $6.99 | Photo & Video | | [Reciprocity Plus](https://appshunter.io/ios/app/reciprocity-plus/id898649178) | 4.1 (7) | $1.99 | Photo & Video | | [Mark II Artist's Viewfinder](https://appshunter.io/ios/app/mark-ii-artists-viewfinder/id711280537) | 4.8 (102) | $39.99 | Photo & Video | | [Exposure Equivalence](https://appshunter.io/ios/app/exposure-equivalence/id6469605168) | — | $0.99 | Photo & Video | ## More apps by David Quiles - [myLightMeter PRO](https://appshunter.io/ios/app/mylightmeter-pro/id583922375) - [Light Meter Wheel](https://appshunter.io/ios/app/light-meter-wheel/id720707253) - [Triptography](https://appshunter.io/ios/app/triptography/id806272440) - [mySpotMeter](https://appshunter.io/ios/app/myspotmeter/id6789911475) All apps by David Quiles: https://appshunter.io/developer/578971109 ## Related topics [photography tool](https://appshunter.io/ios/topics/photography-tool) · [photographer tools calculation](https://appshunter.io/ios/topics/photographer-tools-calculation) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*