# Silverlog Pinhole — Pinhole Camera Calculator

> Pinhole Camera Calculator (iPhone/iPad app by Simon Westgate.)

- Source: https://appshunter.io/ios/app/silverlog-pinhole/id6759198053 (this page in markdown: same URL + `.md`)
- Developer: [Simon Westgate](https://appshunter.io/developer/1856537803)
- Category: Photo & Video, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.1 · 27 MB
- Languages: American English
- Released: 2026-03-24
- Data updated: 2026-07-09
- User reviews in markdown: https://appshunter.io/ios/app/silverlog-pinhole/id6759198053/reviews.md

## What is Silverlog Pinhole?

Silverlog Pinhole calculates the optimal pinhole diameter, effective f-stop and exposure adjustments for pinhole camera photography.

HOW IT WORKS
Enter your focal length (the distance from pinhole to film plane) and the app calculates the optimal pinhole diameter for the sharpest possible image, the effective f-stop, and the exposure compensation needed compared to a conventional camera.

FEATURES
• Optimal pinhole diameter calculation
• Effective f-stop calculation
• Exposure compensation from base metered reading
• Multiple film/sensor format support
• Works offline — no internet connection needed
• Clean, focused interface
• Dark mode support

USEFUL FOR
• Building DIY pinhole cameras
• Converting existing cameras to pinhole
• Calculating exposures for pinhole photography
• Understanding the relationship between pinhole size and image quality
• Educational exploration of camera fundamentals

Part of the Silverlog photography toolkit. No account required. No data collected.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Absolute Hero | $4.99 | one-time |
| Actual Saint | $29.99 | one-time |
| Legend | $2.99 | one-time |
| Guardian Angel | $9.99 | one-time |
| Nice One | $0.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-03-24

No release notes.

## More apps by Simon Westgate

- [Silverlog](https://appshunter.io/ios/app/silverlog/id6755815649)
- [Silverlog Reciprocity](https://appshunter.io/ios/app/silverlog-reciprocity/id6756740671)
- [Silverlog Mix](https://appshunter.io/ios/app/silverlog-mix/id6756785829)
- [Silverlog DoF](https://appshunter.io/ios/app/silverlog-dof/id6756788185)
- [Silverlog Hyperfocal](https://appshunter.io/ios/app/silverlog-hyperfocal/id6756801107)
- [Silverlog Flash](https://appshunter.io/ios/app/silverlog-flash/id6757318928)

All apps by Simon Westgate: https://appshunter.io/developer/1856537803

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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 2026-07-09.*