2835 Columbia St.,
Torrance, CA 90503
Celestron announces the newest addition to its line of ultra-fast astrographs. The 8-inch Rowe-Ackermann Schmidt Astrograph ($1,699) is an f/2 optic designed exclusively for deep-sky imaging. The unit’s 203-mm aperture and short 400-mm focal length produces a usable field of 32 mm with an off-axis illumination of 93% at 11 mm, accommodating cameras with up to APS-C format detectors, and is corrected to perform over a spectral range of 390 to 800 nanometers. The 8-inch RASA features a new focuser system with two sets of precision bearings designed to mitigate lateral movement of the primary mirror when slewing, focusing, or tracking the sky. The OTA is 24.7 inches long, weighs just 17 lbs, and includes a built-in cooling fan and a CGE dovetail mounting bar. An M42 camera adapter, C-thread camera adapter, and fan battery pack are included with purchase.
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