# Stopdown: Depth of Field — DoF calculator & focus stacks

> DoF calculator & focus stacks (iPhone/iPad app by YURY KALESNIKAU.)

- Source: https://appshunter.io/ios/app/stopdown-depth-of-field/id6809464736 (this page in markdown: same URL + `.md`)
- Developer: [YURY KALESNIKAU](https://appshunter.io/developer/1894939983)
- Category: Photo & Video, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 5 MB
- Languages: American English, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French (France), German (Germany), Greek and 17 more
- Released: 2026-10-01
- Data updated: 2026-10-05

## What is Stopdown?

Stopdown shows what will be sharp — as a drawing, not a table.

Set your camera, focal length, aperture and focus distance. The sharpness band redraws instantly: near limit, far limit, total depth, and how much of it sits in front of the focus point and behind it. Hyperfocal distance is always on screen, so you know where to focus to reach infinity.

FREE
• Depth of field for any sensor format, from medium format to phone
• The sharpness band drawn to scale, with the numbers beside it
• Hyperfocal distance and the split in front of and behind focus
• Works offline. No account, no ads, no subscription

STOPDOWN PRO — ONE PURCHASE, NO SUBSCRIPTION
• Focus stacking planner: how many frames and what step to cover a range
• Pick the aperture from the depth you need — the calculation, reversed
• Diffraction limit and field of view
• 372 camera bodies, each with its own blur limit
• Saved presets: your gear in one tap
• Manual blur limit for large prints, 4K and 8K delivery

WHY THE NUMBERS CAN BE TRUSTED
Results use the standard circle of confusion — the sensor diagonal divided by 1442, the criterion behind an acceptably sharp 8×10″ print at arm's length. The Accuracy section in Settings shows the formula, the assumptions and where the model stops being exact, so you can check the app instead of believing it.

PRIVACY
Every calculation runs on your device. There is no account and no network call to work. Anonymous usage statistics help us see where people get stuck; you can switch them off in Settings.

iPhone only. Metric and imperial units, both with the notation your region uses.

Terms of Use (EULA): https://sites.google.com/view/stopdown-tos
Privacy Policy: https://sites.google.com/view/stopdown-pp

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Stopdown Pro | $6.99 | one-time |


## Is Stopdown safe?

Not enough ratings yet to assess Stopdown.

## Is Stopdown legit?

Stopdown: Depth of Field has limited verification signals. The AppsHunter Legitimacy Score for Stopdown is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-01

No release notes.

## Apps similar to Stopdown

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [LiveSYNC Presentation Solution](https://appshunter.io/ios/app/livesync-presentation-solution/id1202200449) | — | Free | Photo & Video |
| [Depth of Field (Hyperfocal)](https://appshunter.io/ios/app/depth-of-field-hyperfocal/id6757069169) | 5.0 (1) | Free | Photo & Video |
| [fotografia - photography tool](https://appshunter.io/ios/app/fotografia-photography-tool/id1329208280) | — | Free | Photo & Video |
| [Sunrise, Sunset & Golden Hour](https://appshunter.io/ios/app/sunrise-sunset-and-golden-hour/id6752982718) | 1.0 (1) | Free | Photo & Video |
| [INSPECTOR Wi-Fi Combo](https://appshunter.io/ios/app/inspector-wi-fi-combo/id1526431164) | — | Free | Photo & Video |
| [ShutterCount Mobile](https://appshunter.io/ios/app/shuttercount-mobile/id1084325249) | 3.3 (66) | $9.99 | Photo & Video |

## More apps by YURY KALESNIKAU

- [Will: Workout Tracker Gym Log](https://appshunter.io/ios/app/will-workout-tracker-gym-log/id6762648565)

All apps by YURY KALESNIKAU: https://appshunter.io/developer/1894939983

---

*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 2026-10-05.*