Celestron Rasa 11 V2 11-Inch Rowe-Ackermann Schmidt Astrograph V2 Ota

Capturing Impressive Deep-Sky Astroimages Is Easier Than Ever With Celestrons Rowe-Ackermann Schmidt Astrograph (Rasa) V2, The Perfect Companion To Todays Top Dslr Or Astronomical Ccd Cameras. This Fast, Wide-Field F/2.2 System Allows For Shorter Exposure Times Compared To Traditional F/10 Astroimaging, Without Sacrificing Resolution. Because Shorter Sub-Exposure Times Are Possible, Your Equatorial Mount Wont Need To Accurately Track Over Extended Periods. The Short Focal Length Also Lessens Equatorial Tracking Demands. In Many Cases, Autoguiding Will Not Be Required.Rasa 11 V2Rasa 11 V2 Builds On The Legacy Of Celestrons Schmidt Cameras, Which Allowed Astrophotographers To Produce Images With Much Shorter Exposure Times On Film In The 1970S. Today, With Ccd Sensor Sizes As Large As Film Or Larger, The Rasa 11 V2 Offers A 43.3Mm Optimized Image Circle To Capture Pinpoint Stars On The Largest Imaging Chips. Optical Performance For Huge Sensors With Diagonals Of Up To 52Mm Wide Is Still Excellent.Wide-Field Imagingcombine This Large Image Circle With A Focal Length Of Just 620Mm And You Have An Instrument Suitable For Wide-Field Imaging, Creating Huge Mosaics Of The Night Sky, Surveying, And Even Comet Hunting.Optical Performancethe Rasa 11 V2 Features Optics With 4-Element Rare-Earth Glass For Images Free Of False Color And Aberrations Like Coma And Field Curvature. The Optical Quality And Spot Size Across The Entire Image Circle Are Unprecedented For An Astrograph In This Price Range Or Even That Of A Much More Expensive Instrument. The Design Also Provides Minimal Vignetting.