Celestron Skymaster Pro 20x80mm Porro Binoculars (72031)

Celestron Skymaster Pro 20x80mm Porro Binoculars (72031)SkyMaster Pro binoculars are the ideal choice for amateur astronomers or anyone that observes at great distances. Compared to lower priced large aperture binoculars, SkyMaster Pro uses superior optics, coatings, internal parts and housing materials. With large objective lenses, BaK 4 prisms and fully multi coated optics utilizing Celestrons proprietary XLT coating technology, the view through a SkyMaster Pro is second to none at this price point.

73") Secondary Mirror Obstruction by Diameter: 38% Secondary Mirror Obstruction by Area: 14% Optical Coatings: Glass mirrors coated with aluminum and SiOâ‚‚ Optical Tube Length: 609

and more moderate 60nm passband of the UHC/LPR filter retains a more natural view

Sky-Watcher's premiere line of Maksutov-Cassegrains

durable frame for the filter glass

Their widely spaced objective lenses enable enhanced triangulation between binocular and subject

you’ll need the appropriate T-Ring for your camera body (#93402 for Nikon & #93419 for Canon EOS)

pair your NexStar 4SE with one of our planetary cameras

The binocular also includes a protective soft case

or add automatic alignment functionality with StarSense AutoAlign

Even if you live in a light polluted city location

In addition to full multi-coating

thus variable focal lengths