Celestron 8" Rowe-Ackermann Schmidt Astrograph (RASA) OTA (91073)

Celestron 8" Rowe-Ackermann Schmidt Astrograph (RASA) OTA (91073)Capture spectacular wide field deep sky images in seconds with Celestron's portable astrograph, the 8" Rowe Ackermann Schmidt Astrograph (RASA). This incredibly fast f 2. 0 system is the perfect companion to today's colour astronomical CMOS cameras, smaller CCD cameras, and mirrorless cameras. Thanks to its fast focal ratio and patented optical design, you can produce sharp, detailed images and, in many cases, skip the autoguider completely. Weighing

Eyepiece projection: classical EYEPIECE DESIGN FIELD STOP DIAMETER 11

20") Diopter Adjustment Range: ±3 Twilight Factor: 22

that is the benefit the Everbrite mirror coating

sharper images without replacing your telescope

You don’t need to turn off all the light sources to allow the naked eye to adapt to the darkness and look for the Polaris in the field of view

It gives you enough room for your nose and good support to keep the perfect eye distance

The built in tripod adapter of the SkyMaster Pro 20x80mm not only allows the binocular to be attached to a tripod for added stability but it also acts as a balance rail by sliding along the center support rod

It fits F50FB

camping gear

the NexStar 6SE breaks down into several lightweight and compact pieces

With 12x magnification

our NMC battery offers overcharge and over-discharge protection and can withstand temperatures 100o F (60o C) higher than LiCoO2 batteries making the NMC less likely to experience thermal runaway