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Celestron CGX-L Equatorial 1100 Rowe-Ackermann Schmidt Astrograph Telescope - 12078
Item #:
CEL-12078
Brand:
Celestron
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12078 CGX-L Equatorial 1100 Rowe-Ackermann Schmidt Astrograph Telescope by Celestron
Capturing impressive deep-sky astroimages is easier than ever with Celestron's new Rowe-Ackermann Schmidt Astrograph, the perfect companion to today's top DSLR or astronomical CCD cameras. This fast, wide-field f/2.2 system offers two huge advantages over traditional f/10 astroimaging: better apparent tracking and shorter exposures. That means you'll create better-looking astroimages in a fraction of the time, even without the use of an autoguider.
The Rowe-Ackermann Schmidt Astrograph builds on the legacy of Celestron's Schmidt Camera, which allowed astrophotographers to produce images on film in the 1970s.
Today, with CCD sensor sizes as large as film or larger the Schmidt Astrograph offers a 43.3mm optimized image circle to capture pinpoint stars on the largest imaging chips. (Note: We previously published 70mm which is actually the aperture of the last lens in the telescope. The optical design has not changed). Combine this large image circle with a focal length of just 620 mm and you have an instrument suitable for wide-field imaging, creating huge mosaics of the night sky, surveying, and even comet hunting.
Optical Performance
The Rowe-Ackermann Schmidt Astrograph features newly designed optics with 4-element rare-earth glass for images free of false color and aberrations like coma and field curvature. The optical quality and spot size across the entire image circle is unprecedented for an astrograph in this price range or even that of a much more expensive instrument. The design also provides minimal vignetting.
Advanced Features
Advanced features like a custom engineered linear brass focuser bearing and FeatherTouch Micro Focus Knob allow you to make the fine adjustments you need to capture the perfect shot. Meanwhile, a12V MagLev fan reduces cooldown time and provides optimal airflow through the dust filtered optical tube.
Engineered as a complete astroimaging system, every component of the Rowe-Ackermann Schmidt Astrograph is optimized for peak performance with DSLR and astronomical CCD cameras. Down to the thickness of the glass used in the included fully-multicoated optical window or an optional imaging filter, every component of the system has been taken into careful consideration to work together seamlessly.
CGX-L Mount
Celestron's newly designed CGX-L Computerized Equatorial mount is the latest addition to our fully computerized equatorial mount series. Capable of carrying Celestron's largest optical tubes with ease, CGX-L is designed for backyard observatories and remote imagers looking for exceptional load capacity to weight ratio, compact design, and innovative features that fully support large telescopes, imaging kits, and the latest in wireless tech accessories.
Key design goals included larger 144 mm diameter worm wheels which provide smoother operation and can more accurately drive heavier loads, longer 270 mm dovetail saddle to support larger optical tubes, remote operation friendly features such as home and limit optical sensors, easier polar alignment adjustments, and better cable management overall. In addition to that, we’ve made mechanical and ergonomic improvements throughout to make the mount sturdier, easier to use, and easier to transport. COMPACT. ERGONOMIC. INNOVATIVE.
Aperture (mm) | 279 mm (11 in) |
Autoguide port | Yes |
Backfocus from front lens assembly | 72.8 mm |
Backfocus from included camera adapter | 55 mm |
Central obstruction diameter | 114mm |
EQ Head Weight w/o Counterweight | 47 lb |
Finderscope | Not Included |
Focal Length | 620 mm |
Focal Ratio | 2.22 |
Included Items | Total Telescope Kit Weight |
Instrument load capacity | 75 lb |
Latitude adjustment range | 3"-65" |
Light Gathering Power (Compared to Human Eye) | 1588x |
Max Slew Speed | 4"/second (3"/second is default) |
Mount | German Equatorial |
Number of Auxiliary ports | 4 |
Optical Coatings | StarBright XLT |
Optical Design | Rowe-Ackermann Schmidt |
Optical Tube Length | 33in |
Resolution (Dawes) | 0.41 arc seconds |
Resolution (Rayleigh) | 0.5 arc seconds |
Software | PWI Telescope Control Software |
Total EQ Head Weight | 52.6 lb |
Total Telescope Kit Weight | 143 lb |
Tracking Rates | Sidereal, Solar and Lunar |
Tripod height adjustment range | 35.75" to 52.75" |
Tripod leg diameter | 2.75" |
Tripod Weight | 46.2 lb |
USB Port | Yes |
Includes | CGX-L Tripod Accessory Tray 2 x 22 lb Counterweight NexStar+ Hand Control DC Power Cable (plugs into cigarette lighter socket) 8 mm Allen Wrench (contained in rear carry handle) |