Skymax 180

Maksutov-Cassegrain optical design Primary and secondary mirrors feature proprietary Radiant Aluminum Quartz™ (RAQ™) coatings Corrector plate featuring Metallic High-Transmission Coatings (MHTC) virtually eliminates chromatic aberrations 180mm aperture, 2700mm focal length Aluminum tube coated with glossy, black diamond metal-flake finish Included accessories: a 2-inch 28mm eyepiece, a 9x50 finderscope, and a 2-inch diagonal Description If you’re seeking crisp, contrasty views with high levels of detail, look no further than the Skymax series, Sky-Watcher’s premiere line of Maksutov-Cassegrains. Generally regarded as producing a sharper image than Schmidt-Cassegrains, Maksutovs offer astronomers a large visual aperture, high contrast and long focal length in a compact package. These telescopes deliver higher levels of planetary detail due to a focal length that is 5-7 times longer than your average Newtonian or refractor telescope. Skymax Maksutovs feature mirrors constructed of borosilicate, polished and coated with our proprietary Radiant™ Aluminum Quartz™ (RAQ™) coatings, which produce a remarkable 94% reflectivity. All Maksutovs use a corrector plate to help reduce chromatic aberration, which is then coated using our signature Metallic High-Transmission Coatings™ (MHTC™), producing professional grade optics at an affordable price. The Skymax 180 includes a 2-inch 28mm eyepiece, a 9x50 finderscope, V-style dovetail, and a 2-inch diagonal. Specifications Optical Info Optical Design Mak-Cass Mirror Coatings Radiant Aluminum Quartz (RAQ)™ coatings with 94% reflectivity Lens Coatings Fully Multi-Coated Glass Type BK7/Borosilicate True Aperture (mm) 182 Primary Aperture (mm) 199 F/Ratio 15 Focal Length (mm) 2700 Secondary Diameter 41mm Secondary Obstruction (by diameter) 23% Secondary Obstruction by Area 5% Observational Info Dawes Limit 0.64 Rayleigh Limit 0.78 Limiting Mag. 13.8 Minimum Magnification 26 Maximum Magnification 354 Light Gathering (compared to next size down) 44% General Info Focuser Primary Mirror OTA Length (Retract/Ext.) 22" OTA Outer Diameter 8.625" OTA Weight (with accessories) 19 Accessories Included Finder 9x50 Finder Included Diagonal 2" Star Diagonal Mounting Accessories V-Rail Included Eyepieces 28 LET Magnification w/ Included Eyepieces 96.4x Included Case No Corrector No