Celestron EdgeHD 14" Optical Tube Assembly CGE Dovetail

Celestron EdgeHD 14" Optical Tube Assembly (CGE Dovetail)

Model: 91060-XLT-CGL

See the Universe in True High Definition

The Celestron EdgeHD 14" Optical Tube Assembly represents the pinnacle of Schmidt-Cassegrain optical performance. Designed as a true astrograph, EdgeHD delivers an aplanatic, flat field optical system that produces pinpoint stars from the centre to the very edge of today’s largest imaging sensors and widest eyepieces.

Whether you’re pursuing high-resolution planetary imaging, deep-sky astrophotography, or premium visual observing, the EdgeHD 14" provides unmatched sharpness, contrast, and versatility at large aperture.

EdgeHD Optical Advantage

Unlike conventional Schmidt-Cassegrain telescopes, EdgeHD optics are engineered to correct both off-axis coma and field curvature, resulting in:

• Exceptionally flat focal plane across the entire field of view

• Tack-sharp stars edge-to-edge, even on large CCD and CMOS sensors

• Dramatically improved performance compared to standard SCTs and other “coma-free” designs

The focal plane is over three times flatter than a standard Schmidt-Cassegrain, ensuring consistent focus and resolution across the frame for imaging and wide-field eyepieces.

Improved Resolution & Light Throughput

Superior edge correction doesn’t just improve aesthetics—it increases usable resolution and limiting magnitude.

• StarBright XLT coatings on all optical surfaces maximise light transmission

• Higher contrast and improved faint-object detection

• Brighter, more detailed images across visual and photographic wavelengths

Advanced Mechanical Design

The EdgeHD 14" OTA has been comprehensively redesigned to ensure its optics perform at their best every night.

Mirror Clutches

Flexible tension clutches hold the primary mirror securely in place once focus is achieved, significantly reducing image shift during long-exposure imaging—without stressing the mirror assembly.

Filtered Tube Vents

Rear-cell cooling vents release warm air from behind the primary mirror for faster thermal equilibrium. Each vent features an integrated 50-mesh filter, allowing heat to escape while keeping dust out.

Fastar & Multi-Focal Versatility

The EdgeHD platform is one of the most versatile imaging systems available:

• Native f/11 for high-resolution deep-sky and planetary imaging

• f/7 with a dedicated EdgeHD focal reducer (optional) for wider fields

• Ultra-fast f/2 Fastar imaging by removing the secondary mirror and using compatible third-party accessories

Individually Tested for Imaging Performance

Every EdgeHD optical tube undergoes a rigorous final acceptance test, including:

• Surface quality inspection of each optical component

• Camera-based testing with an artificial star

This ensures each telescope meets Celestron’s strict performance standards and delivers exceptional results in the field.

Included Accessories

• 9×50 finderscope

• 2" mirror diagonal (with 1.25" adapter)

• 23mm Luminos 2" wide-angle eyepiece

Optical Tube Specifications

Optical Design: EdgeHD Schmidt-Cassegrain
Aperture: 356 mm (14")
Focal Length: 3910 mm
Focal Ratio: f/11

Eyepiece Supplied:

• Focal Length: 23 mm

• Magnification: 170×

Finderscope: 9×50
Star Diagonal: 2" (1.25" adapter included)
Optical Tube Material: Aluminium

Highest Useful Magnification: 840×
Lowest Useful Magnification: 51×
Limiting Stellar Magnitude: 15.3

Resolution:

• Rayleigh: 0.39 arc seconds

• Dawes: 0.33 arc seconds

Light Gathering Power: 2579× human eye

Secondary Obstruction:

• Diameter: 114 mm (32%)

• Area: 10%

Optical Coatings: StarBright XLT

Optical Tube Length: 787 mm (31")
Optical Tube Diameter: 400.5 mm (15.77")
Optical Tube Weight: 46 lb (21 kg)

Dovetail: CGE dovetail bar

Who Is the EdgeHD 14" For?

The EdgeHD 14" OTA is ideal for:

• Advanced deep-sky astrophotographers using large sensors

• High-resolution planetary and lunar imagers

• Serious visual observers seeking maximum aperture with premium correction

• Observatory and semi-permanent installations using CGE-class mounts

⚠ Solar Safety Warning
Never look directly at the Sun without a properly fitted solar filter. Permanent eye damage or equipment damage may occur. Never leave the telescope unattended, especially around children.