Celestron SkyMaster 20x80 Binoculars

Celestron SkyMaster 20x80 Binoculars
by Celestron

Celestron SkyMaster 20x80 Binoculars
List Price: $332.95
Category: Digital Camera
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Digital Photo Product Details

Manufacturer: Celestron
Model: 71018
Product features:
  • Multi-coated optics for a clear view
  • Water-resistant body
  • High-quality BAK-4 prisms
  • Large aperture perfect for low light conditions and stargazing
  • Features integrated tripod adapter rod
Accessories:

Digital Cameras Photo Reviews of Celestron SkyMaster 20x80 Binoculars

Customer Review: Confusing product information
Summary: 2 Stars

Read below - copied from the blurb above on these binoculars. These binoculars have a 4mm exit pupil

The exit pupil size -- the diameter of the objective lens divided by the magnification -- determines the amount of light available to your eye. The larger the exit pupil, the brighter the image obtained will be. A three-millimeter exit pupil is generally sufficient for daytime use, five-millimeters is suitable for daytime and twilight, and seven-millimeters is generally necessary for maximum nighttime or astronomy use.

Why do they say they're stargazing binoculars when they only have a 4mm exit pupil? They wrote just above that you need a 7mm exist pupil for astronmy.

Description of Celestron SkyMaster 20x80 Binoculars

The SkyMaster Series of large aperture binoculars from Celestron offer phenomenal performance for astronomical viewing. They are also a great choice for terrestrial use, especially over long distances. All models feature high quality BAK-4 prisms and have multi-coatings for enhanced contrast. The 80 and 100mm models are waterproof and feature structural reinforcement of the main body for maximum stability and secure optical alignment - in addition, they have a built-in super-rigid photo tripod adapter.
When it's time to gaze at the stars or take in some long-distance or low-light terrain viewing, look no further than the Celestron 71018 SkyMaster 20 x 80 binoculars. Featuring high quality BAK-4 prisms, multi-coated optics for enhanced contrast, a diopter adjustment for fine focusing, and large apertures, these binoculars offer phenomenal performance.

The Celestron 71018 features a 20x magnification and an objective lens diameter of 80 millimeters, giving it a 4-millimeter exit pupil. (The exit pupil size -- the diameter of the objective lens divided by the magnification -- determines the amount of light available to your eye. The larger the exit pupil, the brighter the image obtained will be. A three-millimeter exit pupil is generally sufficient for daytime use, five-millimeters is suitable for daytime and twilight, and seven-millimeters is generally necessary for maximum nighttime or astronomy use.) The Celestron 71018 also includes an integrated tripod adapter rod, a deluxe padded soft carrying case, and Celestron's No Fault Limited Lifetime Warranty.

What's in the Box
Celestron 71018 Binoculars and deluxe padded soft carrying case

Medium Magnification (8x to 11x)

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