Astro Max Calculator for Android - Download Free [Latest Version + MOD] 2025

Whats new in Astro Max Calculator v1.1

6 things about Astro Max Calculator

1. Here is a simple calculator, in night vision friendly red (or daytime color mode), to find recommended maximum shutter speeds based on your lens focal length and digital camera sensor's crop ratio.
2. Astrophotographers often use the "500 Rule" as a way to estimate the maximum shutter speed that can be used to capture the night sky before star trailing becomes noticeable.
3. The 500 Rule is just a starting point for night sky astrophotography.
4. You can try selecting a more conservative rule in the app (400, 300, etc.) for better focused shots.
5. Developer Note: This is my first App Store release.
6. Please let me know how this app works for you, how it doesn't, or what you would like to see in further updates.

Release date: 2021-12-13
Current version: 1.1
File size: 383.00 kB
Developer: Gregory Wu

How to setup Astro Max Calculator APK:

APK (Android Package Kit) files are the raw files of an Android app. Learn how to install astro-max-calculator.apk file on your phone in 4 Simple Steps:

Download the astro-max-calculator.apk to your device using any of the download mirrors.
Allow 3rd Party (non playstore) apps on your device: Go to Menu » Settings » Security » . Click "Unknown Sources". You will be prompted to allow your browser or file manager to install APKs.
Locate the astro-max-calculator.apk file and click to Install: Read all on-screen prompts and click "Yes" or "No" accordingly.
After installation, the Astro Max Calculator app will appear on the home screen of your device.