PocketOP
Martijn van der Linden Photo & Video iPhoneiPadiPod touch
PocketOP is a free Photo & Video app for iPhone and iPad by Martijn van der Linden. Rated 5.0/5 from 1 ratings. Requires iOS 17.0.
- Rating
- 5.0
- 1 ratings
- Price
- Free
- on the App Store
- Size
- 6 MB
- Age 4+
- Updated
- Sep 15
- 2026 · v1.3.0
Screenshots
About PocketOP
PocketOP turns your iPhone into a broadcast operator's viewfinder. Point it at any location and see two real-time field-of-view brackets on the live camera feed: one for the wide end of a lens, one for the tele end. 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/
What’s new
Version 1.3.0 · Updated September 15, 2026
This version adds a live lens zoom preview. No new permissions or entitlements are required. What changed in 1.3.0: - A live lens zoom preview on the camera feed: switch between the field-of-view outline and a live zoom that previews each focal length and moves to the sharpest rear lens automatically. - More detailed screenshot annotations. - Additional improvements and fixes. General notes: - No login, no account, and no external server calls for core functionality. The database loads from CDN on first launch and is bundled in the app as a fallback. - The subscription (Pro, annual) unlocks the full database and the copy-spec feature. The free tier (four broadcast lenses and one PTZ camera) is fully functional, so the paywall and Pro features can be reached and tested directly.
App privacy
The developer, Martijn van der Linden, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
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