Celestron CGX-L Equatorial 1100 HD Telescope

11" EdgeHD Optics: A 0.42 Arc-Second Flat-Field System

The 11" EdgeHD optical tube is an aplanatic Schmidt-Cassegrain designed to be free of both coma and field curvature, delivering sharp stars to the edge of even full-frame sensors. Its native 2800mm focal length at f/10 is ideal for high-magnification views of planets and resolving fine detail in distant galaxies. StarBright XLT coatings maximize light transmission, ensuring the brightest possible images are delivered to the focal plane.

Crucially for imagers, the EdgeHD design produces a 42mm image circle, fully illuminating large sensors without the performance drop-off seen in standard SCTs. This wide, flat field means you can capture expansive targets like the Andromeda Galaxy (M31) or the Rosette Nebula (NGC 2244) without compromising star shapes in the corners of your frame.

CGX-L Mount: 75 lb Capacity on 2.75" Steel Legs

Engineered for stability, the CGX-L mount is Celestron's solution for heavy imaging payloads. Its 75 lb capacity easily supports the 28 lb 11" OTA, leaving ample margin for a full astrophotography setup including a guide scope, filter wheel, and large camera. The entire system is anchored by a heavy-duty tripod with 2.75" diameter steel legs, ensuring vibrations are quickly dampened.

Ergonomic improvements make the CGX-L easier to set up and adjust in the field. Large altitude and azimuth adjustment knobs facilitate precise polar alignment, while internal cabling and strategically placed AUX and autoguider ports minimize snags. Home and limit sensors allow for safe, worry-free remote operation from a connected PC.

NexStar+ Controller: 40,000+ Objects and CPWI Integration

The system includes the classic NexStar+ hand controller, giving you access to a database of over 40,000 celestial objects with a few button presses. Alignment procedures like 2-Star Align and Quick Align get you observing quickly. The mount features sidereal, solar, and lunar tracking rates for any target in the sky.

For advanced users, the included CPWI Telescope Control Software unlocks the mount's full potential. Connect the mount to your PC via USB to access a graphical planetarium interface for point-and-click slewing, advanced polar alignment routines, and seamless integration with popular third-party imaging software.

Imaging Platform: f/2 Versatility and Remote-Ready Features

While the native f/10 focal ratio excels at planetary imaging and small galaxies, the 1100 HD offers incredible versatility. By replacing the secondary mirror with an optional HyperStar lens, you can convert the telescope into an ultra-fast f/2 wide-field imaging system. This dramatically reduces exposure times, allowing you to capture faint, extended nebulae with ease.

• Dual Saddle Plate: Accommodates both CGE and CG-5 style dovetails, allowing you to mount a wide variety of optical tubes.
• Smart Cabling: With four AUX ports and two autoguider ports—some located near the saddle—cable management is simplified, reducing the risk of snags during long imaging sessions.
• Periodic Error Correction: PPEC allows you to train out the periodic error of the worm gear, enabling longer, unguided exposures and improving guiding accuracy.

CGX-L vs. CGX: Why 20 lbs More Capacity Matters

While the standard CGX mount is a capable platform, the CGX-L is a significant step up in stability and capacity for the serious imager. The primary difference is the payload.

• Celestron CGX: Offers a respectable 55 lb payload capacity, making it a more portable and affordable option for lighter imaging setups or visual use.
• Celestron CGX-L: With its 75 lb capacity, the CGX-L provides an extra 20 lbs of headroom. This isn't just about mounting a heavier scope; it's about maintaining tracking accuracy when loaded with a heavy camera, a large filter wheel, an off-axis guider, and a guide scope. The CGX-L's more robust internal mechanics and heavier tripod provide superior rigidity, which translates directly to sharper images.