Celestron EdgeHD 9.25" Optical Tube Assembly (OTA) (91040-XLT)

Celestron EdgeHD 9.25" Optical Tube Assembly (OTA) (91040-XLT)EdgeHD is an aplanatic, flat field Schmidt Cassegrain telescope that produces aberration free images across a wide visual and photographic field of view. The optical system was designed to reduce more than just off axis star coma; it also provides an astrograph quality flat focal plane all the way to the edge of the field of view. True Astrograph Quality Many optical designs that advertise themselves as "astrographs" actually only produce pinpoint

67° Linear Field of View (@1000 yds): 88 ft (27 m) Optical Coatings: StarBright XLT Optical Tube Length: 673mm (26

Similar materials used in China look and feel the same

The miniGuideScope has a focal length of 130mm and a diameter of 30mm

4 Length OTA (inch) 25

Explore the Solar System with your phone or tablet without draining your battery

so its perfectly portable and easy to bring on your next camping trip or to a remote observing site

polycarbonate housing protects your Nature DX ED binoculars from damage without weighing you down

56") Eyepieces: 7mm - 21mm (

9 mm FIELD STOP DISPLACEMENT TO REFERENCE PLANE -26

This compact

producing stunning wide-field images

31") Number of Lens Elements: 4 Barrel Size: 32mm (1