Product OverviewThe Celestron SkyMaster 20x80mm Porro Binoculars are giant astronomy binoculars built for bright, long-range views. Celestron lists 20x magnification, 80 mm objectives, multi-coated optics, long eye relief, and an integrated tripod adapter rod for stable mounting.Who Is This Product Best For?Best for astronomy users and long-distance observers who want a powerful tripod-mounted binocular with large objective lenses.Why Choose This Binocular? 20x magnification: Strong reach for the Moon, star clusters, and distant terrestrial views. 80 mm objectives: Giant lenses gather significant light for low-light observing. Integrated tripod support: Designed for stable mounted use. Recommended Uses Astronomy Moon viewing Bright deep-sky objects Long-distance terrestrial observing Compatibility and Accessory NotesA sturdy tripod is strongly recommended. These are not intended as casual handheld binoculars.Important Limitations Tripod required for best use: The size and magnification make handheld viewing difficult. Large format: Not a compact travel binocular. Frequently Asked QuestionsAre these good for astronomy?Yes. The 20x80 format is popular for tripod-mounted astronomy.Can they be handheld?They can be lifted by hand, but a tripod is strongly recommended.Our RecommendationOntario Telescope recommends the SkyMaster 20x80 for customers who want a brighter, higher-power binocular astronomy experience without moving to a telescope.