Astro Fov Calculator 2021 Jun 2026

Many astrophotographers buy used gear from 2019-2021. If you own a ZWO ASI 071 (released 2018, popular in 2021) or a Meade LX85 (common in 2021 catalogs), modern calculators might have dropped support for these older drivers. The 2021 tools still work perfectly with that vintage.

cap F cap O cap V sub d e g r e e s end-sub equals open paren the fraction with numerator Sensor Dimension (mm) and denominator Telescope Focal Length (mm) end-fraction close paren cross 57.3 Sensor Dimension : Use either the width or height of your camera sensor. : The constant used to convert radians to degrees. 2. For Visual Astronomy (Eyepieces) Apparent FOV of Eyepiece Magnification astro fov calculator 2021

: Powered by David Campbell's 12dstring, this is a clean, reliable web-based option for quick equipment framing. astronomy.tools How to Calculate FOV Manually Many astrophotographers buy used gear from 2019-2021

Example (Using 2021 common gear):

If your gear isn't in a database, use these formulas to find your FOV in degrees: 1. For Astrophotography (Imaging) Sensor Dimension (mm) Telescope Focal Length (mm) cap F cap O cap V sub d