PocketOP
PocketOP is made and published by Martijn van der Linden. AppBrain is an independent app data site and isn't affiliated with Martijn van der Linden. The app name, icon, screenshots and description belong to Martijn van der Linden and are shown as published on the App Store.
AppBrain's verdict
- Rating on App Store
- 5.00
- 1 ratings
- Last updated
- September 15, 2026
- Size
- 5.62 MB
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User feedback
Ratings and reviews on the App StoreComments on PocketOP for iOS
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Store listing
By Martijn van der Linden, from the App Store
Description by Martijn van der Linden Written by the developer, not by AppBrain. Click to read.
No mounting hardware. No guesswork. Just point and see whether the lens reaches far enough and goes wide enough.
PocketOP is also a fast field reference: search the full database and tap any lens or camera for its complete specifications.
See the shot with a live zoom preview
Switch from the field-of-view brackets to a live zoom: PocketOP digitally frames what a given lens would see on your camera feed and moves to the sharpest rear lens for you. A fast way to check whether a focal length gives you the shot before you rig anything.
Built for broadcast lenses, PTZ cameras, and cine zooms
The database covers professional broadcast lenses, PTZ cameras, and cine zoom lenses for Super 35, Full Frame, and Large Format productions. Every entry uses manufacturer-published HFOV values, not focal length conversions. For the full and current database, visit pocketop.app/database.
Database updates without App Store review
New lenses and cameras land via remote update. Request a missing lens from inside the app and it can appear within days.
Fine-tune against real equipment
A guided calibration workflow lets you adjust the overlay per lens with live feedback and a +/-25% offset range for parallax compensation.
What you get for free
Four broadcast lenses (Canon CJ14ex4.3B, Canon HJ40ex14B, Fujinon XA20sx8.5B, Fujinon UA80x9) and one PTZ camera (Panasonic AW-UE40), fully functional with all features. Upgrade to Pro to unlock the complete database with continuous updates.
Works best with
PocketOP uses your iPhone's rear cameras as a reference viewfinder. iPhones with multiple rear lenses (Ultra Wide, Wide, Telephoto) give you more flexibility when matching broadcast focal lengths. iPhone 14 Pro and newer recommended.
Pro subscription: EUR 19.99/year.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Safety and technology
Found in the app by AppBrain- Price
- Free
- App size
- 5.62 MB
- Content rating
- Everyone
Technologies used by PocketOP
Releases
Updates seen on the App Store- Version
- 1.3.0
- Launched
- May 2026
No changelog data
Alternatives
Similar apps and more from Martijn van der LindenAlternatives to PocketOP
Rankings
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About the app and developer
About PocketOP
PocketOP is a photo & video app developed by Martijn van der Linden.
User Ratings
PocketOP is rated 5.00 out of 5 stars. The rating is based on one rating ratings.
App Information
PocketOP is freely available from the App Store. The app size is 5.62 MB. The latest version available is 1.3.0. The last update was on September 15, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since May 2026.
Developer information for Martijn van der Linden
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