FOV (degrees) = 2 × arctan (eyepiece diameter / (2 × telescope focal length))
The FOV calculator uses the following formula: astro fov calculator top
Are you an astronomy enthusiast looking to calculate the field of view (FOV) for your telescope or binoculars? Look no further! An Astro FOV calculator is a valuable tool that helps you determine the angular diameter of the sky area you're observing. In this article, we'll explore the concept of FOV, its importance in astronomy, and provide a step-by-step guide on using an Astro FOV calculator. FOV (degrees) = 2 × arctan (eyepiece diameter