Sky-Watcher Skymax 180 Telescope

Sky-Watcher Skymax 180 Telescope Sky-Watcher SKU: S11540 | Helix SKU: CTS11540 Overview The Sky-Watcher Skymax Maksutov-Cassegrains are the ultimate take-anywhere telescopes. Despite their small dimensions they pack a powerful punch. Their high-resolution, diffraction-limited optical systems are multi-coated to maximize contrast and image sharpness. Specifications: SKU S11540 UPC 050234115407 Optical Info Optical Design Mak-Cass Mirror Coatings 94% Aluminum 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 (