# SharpStop Depth of Field Calc — Hyperfocal, ND, focus stacking

> Hyperfocal, ND, focus stacking (iPhone/iPad app by Yaniv van der Stigchel.)

- Source: https://appshunter.io/ios/app/sharpstop-depth-of-field-calc/id6814971826 (this page in markdown: same URL + `.md`)
- Developer: [Yaniv van der Stigchel](https://appshunter.io/developer/6791340700)
- Category: Photo & Video, Utilities
- Price: $4.99
- Age rating: 4+
- Requires: iOS 17.0 · 3 MB
- Languages: American English, French (France), German (Germany), Japanese, Korean
- Released: 2026-09-24
- Data updated: 2026-10-13

## What is SharpStop Depth of Field Calc?

See what will be sharp before you press the shutter. SharpStop draws the sharp zone on the scene, plans a focus stack shot by shot, and tells you when tonight's Milky Way core is up.

Every tool answers in a sentence, not only in numbers: "Sharp from 1.8 m to infinity: you're at hyperfocal", or "4 shots: focus at 0.47, 0.70, 1.4, 2.5 m".

DEPTH OF FIELD, DRAWN
Camera, subject and horizon in one side view, with the sharp zone shaded from near limit to far limit. Change the focal length, aperture or distance and the band moves with it. The real front-to-back split is spelled out, because the old one-third rule only holds near the hyperfocal distance. One tap focuses at hyperfocal.

FOCUS STACKING PLAN
Enter the nearest and farthest things that must be sharp. SharpStop works out the fewest shots that cover the range with a small overlap, gives the focus distance for each one and draws the stacked zones on the scene. In the field, tick each frame off on a checklist with big targets, then share the plan as text.

MILKY WAY AND STAR TRAILS
For a dark-sky site or your own coordinates, you see when the galactic core is up in full darkness, how much of the moon is lit and which way to face, plus the three best nights in the next 30 days. The NPF rule gives the longest exposure before stars trail for your aperture and pixel pitch, with the 500 rule beside it for comparison. Nights you shoot go into a night log.

ND FILTERS AND FIELD OF VIEW
Your shutter speed with the filter on, in stops, optical density and ND factor at once, with a warning past 30 minutes. Field of view shows what fits in the frame at your subject distance, with a person drawn to scale.

YOUR KIT, SAVED
Save bodies and lenses and load them with a tap. Six sensor formats from 1 inch to medium format, each with its own circle of confusion. Print a hyperfocal card for any lens as a PDF. A glossary explains every term in plain words. Meters or feet.

BUILT FOR THE DARK
Amber on black, so a glance at 4 a.m. does not undo your night vision. Everything is calculated on the phone and works offline. The only part that goes online is the feedback form, when you choose to send a message. No account, no ads.

WHAT IT IS NOT
Depth of field is a standard for acceptable sharpness in a normal-sized print, not a physical edge: at 100% on screen the limits will look soft, and SharpStop says so. The core position is approximate (about half a degree), and weather and light pollution are not included. It does not meter light, model lens breathing or connect to your camera.

## Is SharpStop Depth of Field Calc safe?

Not enough ratings yet to assess SharpStop Depth of Field Calc.

## Is SharpStop Depth of Field Calc legit?

SharpStop Depth of Field Calc appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for SharpStop Depth of Field Calc is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.1.2 — 2026-10-10

Small improvements. Links from App Store events now open the right screen.

### 1.1.1 — 2026-10-06

The welcome screens now fit every screen, from the smallest iPhone to iPad, and no text runs under the buttons any more. Plus small fixes and polish.

### 1.1 — 2026-10-05

A slim plan banner for tonight: your core window or a four-shot stack.
Numbers now count smoothly and headlines never go blank. Explanations open in a small sheet that never covers your values.
Clearer "Behind subject" and NPF labels, and larger info buttons.

### 1.0.1 — 2026-09-28

New app icon. Small fixes and polish.

### 1.0 — 2026-09-24

No release notes.

## More apps by Yaniv van der Stigchel

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All apps by Yaniv van der Stigchel: https://appshunter.io/developer/6791340700

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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 2026-10-13.*