binoculator app is for calculating and understanding key optical parameters of binoculars. This app provides accurate measurements for exit pupil, twilight factor, and field of view based on your inputs for magnification, objective lens diameter, and apparent field of view. With support for various prism types like BAK4, BK7, Porro, and Roof, it delivers detailed insights into light transmission efficiency and other crucial metrics. This app ensures you get the most out of your optical equipment with just a few simple entries.