ZWO 90APO+AM3N bundle Plossl The Questar is considered such

The Questar is considered such an accomplishment that one Questar Standard 3-½ resides in the collection of the Smithsonian Museum of Technology in Washington

telescopes

Zoomable 50° Constant Apparent Field Eyepieces

Attaches to the computer’s serial port and the telescope’s hand control via a phone jack plug

The lenses are fully multi-coated to improve light transmission and protect the optics

ZWO 90APO+AM3N bundle Plossl The Questar is considered suchPackage Includes: ZWO FF90 APO Astrograph f 6. 8 609mm focal length ZWO AM3N Harmonic EQ Mount ZWO TC40 Carbon Fiber Tripod PE160 Extension Pier The FF90 APO's 609mm f 6. 8 optics cover a full frame, 44mm imaging circle, and can be used for both visual observation and astrophotography. The telescope's four element designincluding an ED elementmeans no more precisely calculating your backfocusif you've got accurate focus, you'll get sharp stars out to