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How Big Are the Celestron Skymaster 20X80 Binoculars?

The Celestron Skymaster 20x80 binoculars are large---they are in the "giant" class---so they are not necessarily recommended for hiking trips or holding for long periods of time. Binoculars this size are often mounted on tripods.

Size
- According to Astronomy and Photography Online, the Celestron Skymaster 20x80 binoculars weigh nearly five pounds. They are nearly 13 inches long and nine inches wide. Each objective lens is about 3.15 inches.
Specs
- Celestron says these binoculars are capable of 20-times magnification. The exit pupil---or the diameter of the light that leaves the eyepiece---is just more than 5/32 inches. The distance the binoculars can be held from the eyes---the eye relief---is slightly less than 3/4 inches.
View
- The angular field of view for the Skymaster 20x80 binoculars is 3.7 degrees. The linear field of view at 1,000 yards is 95 feet. The near focus is about 108 feet. The prisms are BAK-4 (high-density) Porro.

Astronomy