Product details:

The SkyMaster Pro are designed for astronomy and observation of very distant objects. Optics, temper, materials and workmanship are better than cheaper binoculars with the same aperture. They offer large front lenses and BaK-4 prisms and are fully multi-coated (FMC fully multi-coated) with Celetstron's own XLT coating.

• Large 80 mm objective lenses for excellent light gathering in low light conditions or for astronomical observing
• Detachable RSR rail for attaching an optional red dot finderscope
• Rubber armored for improved ergonomics and protection from every day use in the field
• Waterproof and nitrogen purged for use in all weather conditions