Orion 180mm Maksutov Cassegrain Telescope Optical Tube.

The Orion 180mm Mak-Cass Telescope Optical Tube is for the most demanding enthusiast which sets a new standard for superb high-power performance in a remarkably compact design. With 7" of aperture and that long focal length it provides tack-sharp, high-contrast views and clearly defined photos with subtle detail. The 180mm (7.1") Maksutov-Cassegrain optical system has 2700mm focal length (f/15).

With 44% greater light grasp than a 150mm Mak, you'll get brighter images and better resolution. No other optical design can deliver such potent optical specifications in a package that measures just 22" long and weighs in at less than 16 lbs. The meniscus lens is fully multicoated for maximum light transmission, further enhancing image brightness.

The visual back accepts 1.25" eyepieces and accessories and a dovetail bracket on the rear cell accepts any Orion finder scope or EZ Finder. The dovetail rail on the underside of the tube attaches to your Orion SkyView Pro, Sirius, or Atlas mount. It offers the amazing image definition Maks are known for, but with a hefty 7" of aperture for brighter images.