The open tube design eliminates the dew problem that is common with conventional Schmidt-Cassegrain systems.
The rack and pinion focuser eliminates image-shift common in other catadioptric designs, and can accepts 2” eyepieces and accessories with 2” adapter (AV-EA-3725).
Pairs of push-pull collimation screws can be used to tweak collimation of primary, secondary and focuser drawtube.
Compact and light-weight with carry handle.
The SPHINX equatorial mount and STAR BOOK controller have been intelligently engineered for high-speed automatic location of celestial objects. It is now possible to explore the beauty of the night sky with greater ease and stability. The SPHINX comes standard with built in motors and the world’s first star chart go-to controller, STAR BOOK, with a large full color LCD display. The SPHINX’s design is exceptional and the exterior styling is equally attractive. Sky & Telescope magazine has recognized the SPHINX as a Hot Product for 2004!
- Optical Design: Catadioptric Cassegrain
- Aperture: 200mm (8")
- Focal Length: 1950mm
- Focal Ratio: f/9.8
- Field Corrector: Meniscus corrector lens
- Tube Length: 535mm (21.1")
- Tube Diameter: 232mm (9.1")
- Tube Weight: 5.9kg (13 lbs)