Multicoated lenses BaK-4 Porro prisms Rubber armoring with pebbled prism coverings Long eye relief combined with large apparent angular field of view
Amazon.com
When it is time to gaze on 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 top 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 includes 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 to be had on your eye. The larger the exit pupil, the brighter the image obtained can be. A three-millimeter exit pupil is usually sufficient for daytime use, five-millimeters is suitable for daytime and twilight, and seven-millimeters is usually vital for maximum middle of the night or astronomy use.) The Celestron 71018 also includes an integrated tripod adapter rod, a deluxe padded soft carrying case, and Celestron’s Limited Lifetime Warranty.
What’s in the Box Celestron 71018 Binoculars and deluxe padded soft carrying case
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

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