11" Edge HD Optical Tube Assembly (CGE)
$4,499.00
Skip to product information
11" Edge HD Optical Tube Assembly (CGE)
$4,499.00
11 Inch Aperture
Massive Light Gathering Power
Flat Field Optics
Pinpoint Stars Across Sensor
StarBright XLT Coatings
Maximum Light Transmission Performance
Fastar Compatibility
Ultra Fast f2 Capture
Mirror Clutches
Eliminates Image Shift During Exposure
Filtered Tube Vents
Rapid Thermal Equilibrium Cooling
Astrograph Precision UnlockedFlawless Deep Sky Imaging Performance
The Celestron 11" EdgeHD Optical Tube Assembly (OTA) is an aplanatic, flat field Schmidt-Cassegrain telescope engineered to deliver aberration-free visual and astrophotographic performance. Designed for serious astroimagers, this 11-inch optical tube produces an ultra-flat focal plane that eliminates off-axis star coma and field curvature across large CCD and CMOS sensors. Combined with StarBright XLT optical coatings, the Celestron 11" EdgeHD OTA offers exceptional light transmission for breathtaking deep-sky views.
Uncompromising Optical ExcellenceAdvanced Engineering For Elite Astrophotography
Achieve true astrograph-quality imaging with the Celestron 11" EdgeHD Optical Tube Assembly (OTA). Unlike standard optical designs, EdgeHD optics produce a focal plane more than three times flatter than traditional Schmidt-Cassegrain telescopes, guaranteeing razor-sharp, pinpoint stars to the very edge of today's largest camera sensors. Mechanical innovations like flexible mirror clutches hold the primary mirror securely without applying force, preventing image shift during long-exposure astrophotography. Additionally, integrated rear cell cooling tube vents with 50-mesh filters release trapped heat quickly while keeping dust out. With native Fastar versatility, you can shoot at f/10, add a focal reducer for f/7, or convert the system to f/2 for ultra-fast wide-field deep-sky capture.
Aperture And Geometry SpecsComprehensive Telescope Performance Metrics
Optical Design
EdgeHD Aplanatic Schmidt-Cassegrain
Aperture
279.4mm / 11 in
Focal Length
2800mm / 110 in
Focal Ratio
f/10
Eyepiece Included
23mm Luminos 2" (122x) (eye)
Finderscope
9x50
Star Diagonal
2" with 1.25" adapter
Optical Coatings
StarBright XLT
Optical Tube Material
Aluminum
Optical Tube Length
610mm / 24 in
Optical Tube Diameter
312.42mm / 12.3 in
Optical Tube Weight
28 lbs / 13 kg
Dovetail Bar
CGE Dovetail Bar
Highest Useful Magnification
660x
Lowest Useful Magnification
40x
Limiting Stellar Magnitude
14
Light Gathering Power
1593x human eye
Advanced Mechanical EngineeringKey Highlights And Included Accessories
Flat-Field OpticsAplanatic Schmidt-Cassegrain design for coma-free images
Flexible Mirror ClutchesKeeps primary mirror locked to reduce image shift during exposures
Rear Cell VentsIntegrated 50-mesh filters release warm air without letting dust inside
Fastar VersatilityRemovable secondary mirror allows ultra-fast f/2 wide-field capture
StarBright XLT CoatingsPremium anti-reflective coatings for maximum light transmission
Accessories Included9x50 finderscope, 2" star diagonal, and 23mm Luminos eyepiece
Mounting CompatibilityPre-installed CGE dovetail bar for heavy-duty astronomy mounts
Frequently Asked QuestionsEverything you need to know
What mounts are compatible with the Celestron 11" EdgeHD Optical Tube Assembly (OTA)?
The Celestron 11" EdgeHD Optical Tube Assembly (OTA) comes equipped with a CGE (Losmandy-style) dovetail bar, making it directly compatible with heavy-duty equatorial mounts designed to handle a 28 lb payload.
Can I use the Celestron 11" EdgeHD Optical Tube Assembly (OTA) for wide-field astrophotography?
Yes, the Celestron 11" EdgeHD Optical Tube Assembly (OTA) features Fastar technology, allowing you to remove the secondary mirror and attach a compatible lens system to shoot at an ultra-fast f/2 focal ratio.
What visual accessories are included with the Celestron 11" EdgeHD Optical Tube Assembly (OTA)?
The Celestron 11" EdgeHD Optical Tube Assembly (OTA) includes a high-quality 23mm Luminos 2" wide-angle eyepiece (122x magnification), a 9x50 finderscope, and a 2" star diagonal with a 1.25" adapter.
How does the Celestron 11" EdgeHD Optical Tube Assembly (OTA) handle internal heat management?
It features rear cell tube vents equipped with integrated 50-mesh air filters that allow warm air to escape from behind the primary mirror without allowing dust inside the optical tube assembly.