Classical Cassegrain optical design excels for high-power lunar and planetary observation and imaging.
For our US and Canadian customers - bit.ly/2tizHdl
Our CC6 6" f/12 Classical Cassegrain Telescope excels for high-resolution lunar and planetary viewing and imaging, and will get you in close on tight objects such as globular clusters and planetary nebulas. In a telescope market currently saturated with short-focal-length, wide-field instruments, the CC6 stands apart by offering something for those wanting serious magnifying capability but in a compact form factor. With an optional 10mm eyepiece you're already probing at 183x magnification. There is no pesky chromatic aberration since there are no lenses as in a refractor.
The Classical Cassegrain optical design utilizes a parabolic primary mirror and a hyperbolic secondary mirror, which for the CC6 allow a long, "folded" focal length of 1836mm to be tucked into a tube just 20.5" long (including focuser). That compact tube, which weighs just 12 lbs., means the CC6 is easily supported on a modest-size mount such as the Orion Sirius EQ-G, even when equipped for photography with an extension ring and optional finder scope and imaging camera.
Both mirrors are made from quartz and can take a very fine polish. The enhanced aluminum coating delivers 96% reflectivity, and a protective quartz overcoat protects the finish. The 6" primary mirror is fixed in place so you won't get image shift or mirror flop like you do from a typical Schmidt-Cassegrain or Maksutov, whose mirrors slide forward and back when focusing. With the CC6, focusing is done with a precision 2" dual-speed (10:1) Crayford focuser machined from solid aluminum. Also unlike a Schmidt-Cassegrain or Maksutov, the CC6 has no glass on the front end to dew up. It's an open tube with eight baffle rings inside to control stray light and ensure maximum contrast.
Sold as an optical tube assembly only, the Orion CC6 6" Classical Cassegrain Telescope comes with TWO dovetail finder scope bases, giving you the freedom to mount an optional Orion finder scope on either side of the focuser, or to mount a small guide scope and finder scope simultaneously. A V-style dovetail mounting bar affixed to the optical tube allows its attachment to any telescope mount equipped with a compatible saddle plate. Also included are three glare-threaded extension rings: one 50mm and two 25mm in length, to allow focus to be achieved with different eyepiece and diagonal combos or imaging cameras. Backfocus distance from the end of the 2" accessory collar is 157.2mm.
This video provides an overview of our CC6 6" Classical Cassegrain Telescope. We offer several other cassegrain telescopes, many of which are described in these videos:
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Since 1975 Orion Telescopes & Binoculars has been offering telescopes for sale direct to customers, with an unswerving commitment to best quality products, value and unmatched customer care. Our 100% satisfaction guarantee says it all. Orion offers telescopes for every level: Beginner, Intermediate, Advanced, and Expert. From our entry level beginner telescopes for amateur astronomers to our Dobsonian telescopes to our most advanced Cassegrain telescopes and accessories, you can find the best telescope for you.
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