# LensTutorial > Interactive photographic lens simulator and calculator for easy learning. (iPhone/iPad app by Alf Jorgen Bratane.) - Source: https://appshunter.io/ios/app/lenstutorial/id500543869 (this page in markdown: same URL + `.md`) - Developer: [Alf Jorgen Bratane](https://appshunter.io/developer/894390036) - Category: Photo & Video, Education - Price: Free with in-app purchases - Rating: 2.90/5 from 7 App Store ratings · 10 written reviews indexed - Age rating: 4+ - Requires: iOS 10.0 · 7 MB - Languages: American English, French (France), Russian - Released: 2012-12-09 - Data updated: 2026-06-05 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/lenstutorial/id500543869/reviews.md ## What is LensTutorial? LensTutorial is about learning to use photographic lenses the easy way. The app wraps all lens calculations into one package and allows you to quickly see them in action. Learning photography can be easy and we encourage you to use our app to facilitate this process. LensTutorial allows to simulate photographic lens usage and display effects of lens controls manipulation. The app combines both visual and interactive way of representing information with classic DOF calculator functionality. It allows to quickly estimate and visualize the following parameters on one screen: Angle of view Total depth of field Near range of depth Far range of depth 35-mm equivalent of focal length Subject magnification All modern cameras of various makers supported. ## Key features - Interactive lens simulations - Depth of field calculator - Angle of view estimation - 35-mm equivalent calculation - Subject magnification display - Support for modern cameras ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Aperture upgrade | $0.99 | one-time | | Zoom upgrade | $0.99 | one-time | | Distance upgrade | $0.99 | one-time | | Built-In lens | $1.99 | one-time | ## Recent user reviews (10 of 10) All indexed reviews: https://appshunter.io/ios/app/lenstutorial/id500543869/reviews.md ### 1/5 — iPhone X *2018-09-23, version 1.5* Cannot use focal length slider with iPhone X as it I at the very bottom of the screen, conflicts with slider. ### 2/5 — Needs an update *2015-10-11* Old app. Doesn't have GH-4 camera or 12-35 lens. ### 3/5 — Interface not great *2014-12-04* Use regular inertia dials for the interface. The simulated camera controls are difficult to read. Also no one thinks in decimal feet, change the calculation to show feet/inches. People will REALLY appreciate that. ### 1/5 — AVOID IF YOU HAVE A FUJI!!!Agfa, Minox, and Practica, but no Fuji?!? *2013-09-28* Not sure why Fuji got omitte when there are so many small makers included, but as a dedicated Fuji owner, I'm surprised by the snub, and will be waving others away until it gets fixed ### 4/5 — Educational tool. *2013-09-26* Great for the beginner or someone who just made the move to a DSLR or one of those great 4/3 jobbers. ### 5/5 — DOF Visualised *2013-08-29, version 1.3* There're more than a handful other apps out there that allow you to make depth of field calculations but this is the only one I've seen so far that gives you a real time visual feedback. The interface is simple and responsive allowing fast on set decisions. ### 4/5 — Works for me *2013-07-05* Great graphical visualization of both depth of field & angle of view (compensated for sensor size). I would suggest that the background pattern/color be optional or white - the gray makes the type hard to read. ### 4/5 — Wonderful F.O.V. & D.O.F. Simulator *2013-06-07* I really like this app. It has helped me visualize the Depth of Field I would get in certain situations with various lenses and simarily help judge the Field of View various lenses would offer at various distances. While the program does have some issues handling the simulation of extreme focal lengths and the longest distance settings, too, I find them to be minor stumbling points. In fact, I don't easily see a way around the obstacles presented in simulating extreme settings on small displays. I highly reccomend the app. Sincerely Richard in Michigan ### 2/5 — Out of focus *2013-04-09* Would really like to use this program however, I cannot read the screen as the numbers are small with little contrast. ### 4/5 — Nice way to visualize lens choice *2013-02-28* This is a nice app to visualize the way that focal length relates to distance to subject, depth of field and width of scene. If the focal lengths could be set to snap to the user's preferences (example: 70mm, 85mm, etc.) I would give this app a perfect score. Well done, nice interactive and useful photographic aid. ## Frequently asked questions about LensTutorial ### What is LensTutorial? LensTutorial is an app designed to help users learn about photographic lenses through interactive simulations and calculations. It visualizes lens effects and provides tools to estimate parameters like depth of field and angle of view. ### Does LensTutorial have ads? No, LensTutorial does not contain advertisements. It offers a clean, ad-free experience for users focused on learning photography. ### What parameters can LensTutorial calculate? LensTutorial can quickly estimate and visualize the angle of view, total depth of field, near and far range of depth, 35-mm equivalent focal length, and subject magnification. ### Is LensTutorial free to use? Yes, LensTutorial is free to download and use. It also offers in-app purchases for additional features or content. ### What devices does LensTutorial support? LensTutorial is available on iPhone, iPad, and iPod touch devices, making it accessible to a wide range of Apple users. ### How often is LensTutorial updated? The latest version of LensTutorial is 1.7, and it was last updated on January 9, 2022. This indicates a moderate update frequency. ### What is the age rating for LensTutorial? LensTutorial has an age rating of 4+, making it suitable for a young audience and general users interested in photography. ### How does LensTutorial compare to other photography apps? LensTutorial focuses specifically on the interactive learning of lens mechanics and calculations, offering a visual and hands-on approach that differentiates it from general photo editing or camera apps. ## Version history (last 5 releases) ### 1.7 — 2022-01-09 App no longer crashes in info screen ### 1.6 — 2020-03-08 Screen layout optimized for larger screens ### 1.5 — 2018-04-05 - 64 bits support ### 1.4 — 2013-09-25 - New cameras: 3400+ digital cameras known to date - Account for lens field curvature correction - Hi constrast scheme with large screen fonts for outdoor use - Built-In lens support for Point&Shoot and SLR-like cameras, 2400+ lenses - Super-fast f/0.75 aperture for Aperture Upgrade ### 1.3 — 2013-02-22 - Share your LensTutorial setup: with friends to communicate your photographic intents and findings. Supports major social sites, email and more. - Don't reroll the dials: LensTutorial will remember your current aperture, distance and zoom values across application launches. - More realistic look: Aperture dial moved to the bottom the same way Canon, Nikon and other DSLR brands have it in their lenses. ## Apps similar to LensTutorial | App | Rating | Price | Category | | --- | --- | --- | --- | | [Photographer Tools calculation](https://appshunter.io/ios/app/photographer-tools-calculation/id1600655688) | — | $0.99 | Photo & Video | | [DoF Calculator](https://appshunter.io/ios/app/dof-calculator/id6742732770) | 4.7 (22) | Free | Photo & Video | | [CropCamera - Viewfinder](https://appshunter.io/ios/app/cropcamera-viewfinder/id1613945133) | 5.0 (1) | $2.99 | Photo & Video | | [WeVideo - Video Editor & Maker](https://appshunter.io/ios/app/wevideo-video-editor-and-maker/id615796920) | 4.6 (39,343) | Free | Photo & Video | | [Jeff Curto's Camera Position](https://appshunter.io/ios/app/jeff-curtos-camera-position/id1552761220) | 4.0 (1) | Free | Photo & Video | | [Photo Friend exposure and DoF](https://appshunter.io/ios/app/photo-friend-exposure-and-dof/id1198327295) | 4.1 (9) | Free | Photo & Video | --- *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 2026-06-05.*