Kostenloser Binocular Exit Pupil Rechner
Berechnen Sie den exit pupil of binoculars or a telescope. Kostenloser exit pupil Rechner.
Exit Pupil
5.00 mm
Exit Pupil vs Objective Aperture
Formel
## Exit Pupil **Exit Pupil = Aperture / Magnification** The exit pupil is the diameter of the light beam leaving the eyepiece. For the brightest possible image, the exit pupil should match your eye's pupil (5-7 mm in darkness). - Exit pupil > eye pupil: light is wasted - Exit pupil < 1 mm: image is dim, floaters visible - Ideal for astronomy: 2-5 mm
Lösungsbeispiel
10×50 binoculars (50 mm aperture, 10×).
- 01Exit pupil = 50 / 10 = 5.0 mm
- 02Excellent for astronomical use with a dark-adapted eye.
Häufig Gestellte Fragen
What is the best exit pupil for stargazing?
About 5-7 mm provides the brightest images. For deep-sky objects, 4-5 mm is ideal as it darkens the sky background slightly while keeping objects bright.
Do 7×50 or 10×50 binoculars have a bigger exit pupil?
7×50 = 7.1 mm exit pupil; 10×50 = 5.0 mm. The 7×50 gives a brighter image but less magnification.
How do I measure exit pupil?
Hold binoculars at arm's length aimed at a bright surface. The bright disc floating above each eyepiece is the exit pupil. Measure with a ruler.