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Celestron CGEM II 700 Maksutov-Cassegrain Telescope
Condition: Brand New in Original Packaging
What's in the Box
- Celestron CGEM II 700 Maksutov-Cassegrain Telescope
- CGEM II Equatorial Head
- Accessory Tray
- 1 x 17 lb and 1 x 12 lb Counterweight
- NexStar+ Hand Control
- DC Power Cable
- 8mm Allen Wrench
- 2-Inch Visual Back
- 2-Inch Star Diagonal with 1.25-Inch Adapter
- 28mm Wide-Field 2-Inch Eyepiece
- Large 8x50 Straight-Through Finderscope
Celestron CGEM II 700 7" Maksutov-Cassegrain Telescope Optical Tube Assembly
The Celestron CGEM II 700 Maksutov-Cassegrain Telescope Optical Tube Assembly is a specialized instrument designed for detailed, high contrast views of smaller celestial objects like the planets. This Maksutov-Cassegrain optical tube provides unparalleled views of the planets and up-close views of the lunar surface, including craters and maria, and is also well suited for hunting smaller, fainter, deep sky objects such as globular clusters and planetary nebulae. Astronomers located in urban areas will appreciate the Mak’s ability to bring out more contrast in celestial objects.
Maksutov-Cassegrain Optical Design
The Mak is a catadioptric telescope, which means the optical design includes both a lens and a mirror. The light coming through a Mak passes through the corrector lens to the primary mirror and back to a spherical secondary mirror before it hits your eyepiece. Images are bright, sharp, and virtually free of chromatic aberration.
The Maksutov-Cassegrain’s optical design offers several unique benefits. Instead of a secondary mirror, the Mak features a “secondary spot” of reflective coating applied directly to the inside of the corrector plate. Because of this, the telescope does not require frequent collimation like a Schmidt-Cassegrain. Also, the secondary spot is significantly smaller than a traditional Schmidt-Cassegrain secondary mirror, giving the Mak its signature high-contrast views.
StarBright XLT Technology
StarBright XLT is Celestron’s revolutionary optical coating system that outperforms any other coating in the commercial telescope market. There are three major components that make up our StarBright XLT high-transmission optical system design. It features a unique enhanced multi-layer mirror coatings made from precise layers of aluminum, SiO2 (quartz), TiO2 (titanium dioxide), and SiO2 (silicon dioxide). Reflectivity is fairly flat across the spectrum, optimizing it for both imaging and visual observing. The multi-layer anti-reflective coatings are made from precise layers of MgF2 (magnesium fluoride) and HfO2 (hafnium dioxide). Finally, the StarBright XLT uses high-transmission water white glass instead of soda lime glass for the corrector lens. Taken together, these three components make StarBright XLT one of the finest optical coatings available.
- 7.08" (180mm) Aperture
- 2700mm Focal length
- f/15 Focal ratio
- Maksutov-Cassegrain optical design
- Up to 420x magnification
- StarBright XLT optical coatings on every surface
- 8x50 Straight through finderscope
- 26mm Super Plossl (1.25") eyepiece
- High contrast views of planets and lunar landscapes
- Dovetail rail compatible with CGE mounts
- Celestron CGEM II 700 Maksutov-Cassegrain Optical Tube Assembly
- 8x50 Straight Through Finderscope
- 2-Inch Visual Back
- 2-Inch Star Diagonal
- 2-Inch to 1.25-Inch Adapter
- 2-Inch Eyepiece: 28mm (96x Magnification)
- CGE Dovetail Plate
- 2-Year Manufacturer's Telescope Warranty
**NOT FOR WEBSITE** CGEM II Mount (w/o Tripod)
Tripod, CGEM II w/17 LB Counterweight *Not for Individual Sale-For Kit Sale Only*
Celestron Counterweight for the CGEM Equatorial Mount (11 lbs/5kg)
This 11 lb. counterweight from Celestron was made for use with Celestron's CGEM mount and is designed for efficiency and for your convenience. The counterweight balances the overall mass of a telescope’s optical tube working in conjunction with the CGEM mount. Featuring all the elements you need to better utilize your equipment and enrich your astronomical observations, the Celestron 11 lb. Counterweight is the ideal addition to your stargazing set-up!
- Counterweight for balancing heavy loads
- Ideal for astrophotography applications
- Compatible with Celestron CGEM computerized equatorial telescope mounts
- Improve balance and smoothness of operation
- Weighs 11 lbs.
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Filed under: High-End Telescope Auctions (USA)