# Depth of Field: Two Subjects — Hyperfocal aperture calculator

> Hyperfocal aperture calculator (iPhone/iPad app by Jinwan Kim.)

- Source: https://appshunter.io/ios/app/depth-of-field-two-subjects/id6809072488 (this page in markdown: same URL + `.md`)
- Developer: [Jinwan Kim](https://appshunter.io/developer/1446513824)
- Category: Photo & Video, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 5 MB
- Languages: American English, French (France), German (Germany), Japanese, Korean, European Spanish, Chinese (Traditional, Taiwan)
- Released: 2026-09-16
- Data updated: 2026-09-17

## What is Depth of Field?

Say what has to be sharp.

Most of these tools ask for one distance and hand back a range. Real frames have two things in them — the rock in the foreground and the ridge behind it, the front petal and the back of the flower. Give this one both distances and it works the other way round: where to focus, and which apertures actually reach from one to the other.

The exact requirement, not the nearest stop.

If a frame needs f/9.6, that is what it says, along with the first stop on the ladder that satisfies it and the one below that does not. Thirds of a stop are on the ladder, so a value the whole stops skip over is still yours to use.

No model list to be missing from.

Twenty-four formats, from sheet film down to a phone.

Choose a sensor by its measurements, or type the two numbers off the maker's spec sheet. There are no brands and no models anywhere in this app, so the table cannot go out of date and your body cannot be absent from it.

The sharpness standard is yours.

Everything here turns on the circle of confusion, and that number is set by you: name a print size and the distance you will stand from it, or count pixels instead. The micron it produces is shown with the arithmetic that made it, and it is printed beside every verdict.

It says when no aperture works.

Diffraction is measured against your standard, not against a fixed stop, so the ceiling moves when your standard moves. When the requirement passes the ceiling, the two walls cross and the answer is that there is no aperture — followed by which of three inputs would open one again.

Sent as a card.

The verdict goes out as a picture and as text: both distances, focus, the window, the exact requirement, the ceiling, and the standard it was all judged at.

Geometry only. Nothing here promises a result, and nothing leaves this device.

Languages: English, 한국어, 日本語, 繁體中文, Deutsch, Français, Español

## Is Depth of Field safe?

Not enough ratings yet to assess Depth of Field.

## Is Depth of Field legit?

Depth of Field: Two Subjects appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Depth of Field is 75 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-09-16

No release notes.

## More apps by Jinwan Kim

- [Five Shapes](https://appshunter.io/ios/app/five-shapes/id1448811518)
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- [A Sudden Note](https://appshunter.io/ios/app/a-sudden-note/id1521985749)
- [Lockin Message](https://appshunter.io/ios/app/lockin-message/id1523017286)
- [Give Me Random](https://appshunter.io/ios/app/give-me-random/id1524590153)
- [Shuffle Dice](https://appshunter.io/ios/app/shuffle-dice/id1527738243)

All apps by Jinwan Kim: https://appshunter.io/developer/1446513824

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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 2026-09-17.*