Astro Calc app for iPhone and iPad

4.8 ( 5968 ratings )

Photo & Video Utilities
Developer: Ben Brackenbury

Free

Current version: 1.0.1, last update: 1 year ago
First release : 18 Jun 2020
App size: 1.18 Mb

To avoid unwanted star trails when taking pictures of the night sky, a maximum shutter speed exists, influenced by focal length and sensor crop factor. Astro Calc calculates this for you.