Skywatcher Skymax 180mm Maksutov Cassegrain OTA

Skywatcher Skymax 180 Skywatcher Skymax 180 OTA Premium Quality Maksutov Cassegrain Telescope - Features Best Optical Technology Includes Uses Of Schott Glass (Carl Zeiss .Metallic High Transmission Coating With Enhanced 94% Reflectivity Mirror Allow Best Contrast And Clarity. Maksutov Cassegrain Optical Design Allow Superior Performance Than Newtonian And Also Schmidt Cassegrain Traditional Maksutov Cassegrain Design Gives Virtually Distortion Free Image With Flat Field. It Has A Small Central Obstruction - 6%. This Gives Improved Contrast Increase Brightness. New Finishing In White And Metallic Black Plus SCT Threaded Comes Standard With 2\ Visual Back With 2\ Diagonal 2\ 28mm Apex Eyepiec. Specifications Maksutov Cassegrain Optical Design Metallic High Transmission (MHC) Coating 94% Enhanced Reflectivity Mirror, Quartz Overcoated Tranmission Rate 87.5% Total Schott AG Glass (Germany) 180mm Clear Aperature (7.1'') 203mm Oversized Mirror (8\) 2700mm Focal Length F/15 Focal Ratio 430X Maximum Useful Magnification 661X Light Gathering Power 44mm Secondary Size By Diameter 24.4% Central Obstruction By Diameter 6% Central Obstruction By Size 7.8Kg Weight SCT Threaded 2'' Visual Back Finishing : Glossy Metallic Black Included Items Skywatcher Skymax 180 OTA 2'' Star Diagonal, Enhanced Reflecitivity 94% 2'' Rear Port 9x50 Finder Scope 2'' 28mm APEX Eyepiece 2 Year Skywatcher Warranty