# Star Exposure Calculator

> Star Exposure Calculator (iPhone/iPad app by Dejan Boras.)

- Source: https://appshunter.io/ios/app/star-exposure-calculator/id6670283794 (this page in markdown: same URL + `.md`)
- Developer: [Dejan Boras](https://appshunter.io/developer/1612985659)
- Category: Photo & Video, Reference
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 25 MB
- Languages: English
- Released: 2024-09-25
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/star-exposure-calculator/id6670283794/reviews.md

## What is Star Exposure Calculator?

Star Exposure Calculator is an app that helps you calculate the right exposure settings for pin-sharp stars in astrophotography.

Features:
• Calculate star exposure via simple or complete NPF rule for pin-sharp stars
• Calculate star exposure via 500 rule
• Calculate focal ratio of your telescope
• Telescope magnification calculator
• Maximum telescope magnification calculator
• Telescope true field of view calculator

We constantly update the app to provide more features that users are looking for, so expect even more with future updates.


## Version history (last 5 releases)

### 1.3.6 — 2026-04-05

• Expanded camera database
• Some updates to keep the app fresh

### 1.3.5 — 2025-04-16

• Camera database update (Nikon Z5II)
• Optimizations and bug fixes

### 1.3.4 — 2025-03-31

• Improvements to the camera picker
• Expanded the camera database

### 1.3.2 — 2025-03-05

• Minor fixes and improvements

### 1.3.1 — 2024-12-27

• More astronomy tools
• Fixes and improvements

## Apps similar to Star Exposure Calculator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [ND Filter Long Exposure Photo](https://appshunter.io/ios/app/nd-filter-long-exposure-photo/id6741926889) | 5.0 (1) | Free | Photo & Video |
| [Timelapse-Videos](https://appshunter.io/ios/app/timelapse-videos/id1663782662) | — | $0.99 | Photo & Video |
| [Light Planner](https://appshunter.io/ios/app/light-planner/id6480509659) | — | Free | Photo & Video |
| [Luma Calc](https://appshunter.io/ios/app/luma-calc/id6741770226) | — | Free | Photo & Video |
| [Photographer Tools calculation](https://appshunter.io/ios/app/photographer-tools-calculation/id1600655688) | — | $0.99 | Photo & Video |
| [MetaLog](https://appshunter.io/ios/app/metalog/id1475309518) | 3.8 (12) | $0.99 | Photo & Video |

## More apps by Dejan Boras

- [Broque Personal Finance](https://appshunter.io/ios/app/broque-personal-finance/id1612985657)
- [Marky Notes](https://appshunter.io/ios/app/marky-notes/id6449909608)
- [Luminis Light Meter](https://appshunter.io/ios/app/luminis-light-meter/id6670429300)
- [Luminis Light Meter Pro](https://appshunter.io/ios/app/luminis-light-meter-pro/id6752771423)

All apps by Dejan Boras: https://appshunter.io/developer/1612985659

## Related topics

[star exposure calculator](https://appshunter.io/ios/topics/star-exposure-calculator)

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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 2026-05-17.*