Image: Nachtglaspupillep
Size of this preview: 800 × 319 pixels. Other resolutions: 320 × 128 pixels | 952 × 380 pixels.
Original image (952 × 380 pixels, file size: 61 KB, MIME type: image/jpeg)
Description: Comparision of exit pupils. Left: small 25×30 telescope, 30 ÷ 25 = 1.2 mm. Right: Binoculars for low light use, 7 mm. The exit pupil appears as discs on the eyepiece lenses of these 9×63 binoculars. Its diameter is 63 ÷ 9 = 7 mm.
Title: Nachtglaspupillep
Credit: Own work
Author: Blaubus
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: https://creativecommons.org/licenses/by-sa/3.0
Attribution Required?: Yes
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