Understanding Binoculars: Exit Pupil

Exit Pupil is calculated by dividing aperture/magnification and it influences the brightness of your image. Watch this video to learn more about Exit Pupil. https://www.eagleoptics.com/pages/tec... http://www.eagleoptics.com - [Video description] Thanks for Watching! There's plenty more to learn: Subscribe to our YouTube channel:    / eagleopticsvids   "Like" us on Facebook:   / eofans   Or visit our website: http://www.eagleoptics.com