# PocketOP — Broadcast Lens & PTZ FOV Tool

> Broadcast lens field-of-view visualization tool for iPhone. (iPhone/iPad app by Martijn van der Linden.)

- Source: https://appshunter.io/ios/app/pocketop/id6761281428 (this page in markdown: same URL + `.md`)
- Developer: [Martijn van der Linden](https://appshunter.io/developer/1888601615)
- Category: Photo & Video, Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 5 MB
- Languages: American English
- Released: 2026-05-30
- Data updated: 2026-09-11
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/pocketop/id6761281428/reviews.md

## What is 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.

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/

## Key features

- Real-time field-of-view brackets
- Broadcast lens database
- PTZ camera support
- Cine zoom lens compatibility
- Guided calibration workflow
- Remote database updates

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| PocketOP Pro | $17.99 | per year |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/pocketop/id6761281428/reviews.md

### 5/5 — A Must-Have for Broadcast Production

*2026-06-03*

As a project manager for webinars and livestreams, I find this tool incredibly useful. Being able to quickly show clients realistic camera framing and perspectives before any gear is even on-site makes conversations so much easier and helps eliminate a lot of guesswork.

**Developer response:** Thank you for this thoughtful review! Helping production teams align on framing before the shoot is exactly what PocketOP was built for. Great to hear it's making those conversations easier!

## Frequently asked questions about PocketOP

### What is PocketOP?

PocketOP transforms your iPhone into a broadcast operator's viewfinder. It displays real-time field-of-view brackets for wide and telephoto lens ends on your live camera feed, eliminating guesswork for lens reach and width.

### What lenses and cameras does PocketOP support?

PocketOP supports professional broadcast lenses, PTZ cameras, and cine zoom lenses for Super 35, Full Frame, and Large Format productions. The database includes entries for specific models from manufacturers like Canon, Fujinon, and Panasonic.

### How does PocketOP update its lens database?

The lens and camera database is updated remotely without requiring an App Store review. New lenses can be requested from within the app and may be added within days.

### Can I calibrate PocketOP to my specific equipment?

Yes, PocketOP offers a guided calibration workflow. This allows you to fine-tune the overlay for each lens with live feedback and a +/-25% offset range for parallax compensation.

### What features are available for free in PocketOP?

The free version of PocketOP includes four broadcast lenses (Canon CJ14ex4.3B, Canon HJ40ex14B, Fujinon XA20sx8.5B, Fujinon UA80x9) and one PTZ camera (Panasonic AW-UE40), with all features fully functional.

### What is the cost of the PocketOP Pro subscription?

The PocketOP Pro subscription costs EUR 19.99 per year. This unlocks the complete database with continuous updates and new lenses and cameras as they are added.

### What devices is PocketOP compatible with?

PocketOP is designed for iPhone and works best with iPhones that have multiple rear cameras (Ultra Wide, Wide, Telephoto) for greater flexibility. iPhone 14 Pro and newer models are recommended.

### Does PocketOP have ads?

No, PocketOP does not contain advertisements. The app is ad-free, allowing for an uninterrupted user experience.

## Version history (last 4 releases)

### 1.2.1 — 2026-09-04

This is a maintenance update with fixes and refinements.

- Search persists across tabs. The count beside each tab name shows which tab holds your matches, so you can jump straight to it.
- Improved UI scaling across iPhone models.
- Additional fixes and refinements.

### 1.2.0 — 2026-08-28

This update makes PocketOP a fast field reference as well as a field-of-view tool.

- Lens and PTZ details, now in the app. Tap any lens or camera for full specifications and background, the same detail layer as pocketop.app, with direct links to the manufacturer and product pages so you can dig deeper.
- Smart search. Find any lens or camera in seconds. Search expands common synonyms and completes as you type. You can search across specifications too, for example to see which PTZ cameras carry a given PoE class.
- Copy a full spec sheet. Copy a lens or camera's complete details to the clipboard, ready to paste (Pro).
- Build a custom lens from specs. Turn a copied spec sheet into a custom lens in a couple of taps to use as a quick starting point.
- UI and menu improvements. The lens and camera pickers now open on your active selection and clearly mark active and compare entries.
- Bug fixes and optimizations.

### 1.1.0 — 2026-06-12

CSV export for scout lists. Export any scout list as a CSV for easy import in production or rental software.

Bracket thickness. Adjust the line weight of the active lens bracket, compare bracket, and screenshot exports independently. Choose Thin, Medium, or Thick for the wide and tele end separately, with a live preview over the camera feed.

Custom lens editing. Edit and duplicate saved custom lenses directly from the lens picker.

Cine lens selector. Fixed an issue where sensor and mount filters could leave the list in an inconsistent state.

Bug fixes and improvements.

### 1.0 — 2026-05-30

No release notes.

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*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 2026-09-11.*