Meet the EdgeHD 800 SCT OTA: Celestron's most premium Schmidt-Cassegrain Astrograph.

With EdgeHD Optics to produce a flat-field image from edge-to-edge of the focal plane that virtually eliminates aberatton, the Celestron EdgeHD series delivers on pinpoint stars across the entire field of view. In fact, compared to a standard schmidt-cassegrain, the EdgeHD records 3x flatter focal plane.

Coupled with Celestron's propriety StarBright XLT Coatings that maximises light transmission into the telescope tube, the Celestron EdgeHD system is built to produce breathtaking views and images for any dedicated astrophotographer. 

 

Features

- 203.2mm (8-inch) Aperture

- 2032mm (80-inch) Focal Length (f/10)

- EdgeHD Optics

- StarBright XLT Coatings

- Mirror Clutches

- Cooling Vents

- Fastar Compatible

- CGE Dovetail Bar Included

- Celestron 2 Year Warranty

 

Specialised Features

Certain features are only found on the Celestron EdgeHD range that are not available in the standard Schmidt-Cassegrain. These include mechanical features such as: 

• Mirror Clutches: Flexible tension clutches hold the mirror in place and reduce image shift when taking long exposure astro-images. Once focused, the flexible rods allow the mirror to be held in place without putting any force or pressure on the mirror assembly, keeping the image centered in the eyepiece (or on the sensor).

 

• Tube Vents: Cooling vents located on the rear cell allow hot air to be released from behind the primary mirror. Each vent has an integrated 95-micron micromesh filter guaranteed to let warm air out without letting dust in.

 

• Fastar Versatility: The Celestron EdgeHD range can be dropped from a f/10 to a f/2 with a FASTAR adapter (sold separately). This makes it suitable for planetary imaging as a native f/10, but also for galaxies with a f/7 (with a focal reducer sold separately) or wide field imaging with an f.2, ultra-fast f/2 wide field imaging.

 

Rigorous Quality Control Standards

Celestron takes the quality assurance of their EdgeHD series seriously. Each EdgeHD tube produces undergoes severe scrutinity by a trained Quality Assurance Engineer at Celestron prior to shipment. Not only do they review the physical manufacturing process, each tube faces a camera and artificial star to ensure that its imaging system is up to par. This makes every Celestron EdgeHD product personally tested to fit their high standards for astrophotography. 

 

Full Specifications

Optical Tube Assembly (OTA)

Optical Design	Schmidt-Cassegrain (SCT) EdgeHD
Aperture	203.2mm (8-inches)
Focal Length	2032mm (80-inches)
Focal Ratio	f/10.0
Included Eyepiece	40mm (51x Magnification)
Finderscope	9x50
Star Diagonal	2" with 1.25-inch Adapter
Optical Tube Construction	Aluminium
Highest Useful Magnification	480x
Lowest Useful Magnification	29x
Limiting Stellar Magnitude	14
Resolution (Rayleigh)	0.69 Arc Seconds
Resolution (Dawes)	0.57 Arc Seconds
Light Gathering Power (Compared to Human Eye)	843x
Secondary Mirror Obstruction	64mm (2.5")
Secondary Mirror Obstruction by Diameter	31%
Secondary Mirror Obstruction by Area	9.77%
Optical Coatings	StarBright XLT
Optical Tube Length	432mm (17")
Optical Tube Diameter	238mm (9.37")
Optical Tube Weight	6.35kg
Dovetail	CGE Dovetail Bar
Warranty	Celestron 2 Year Warranty

 

Recommended Accessories

	Celestron 0.7x Reducer Lens for EdgeHD 800 Improve coma correction and reduce focal ratio for DSO imaging.
	Celestron Omni 2x Barlow Lens Double the magnification of your telescope with a barlow lens. Highly recommended if you are interested in viewing the planets. Don't go without it!
	Celestron Advanced VX Computerised Mount The Celestron Advanced VX Computerised Mount is a compatible computerised telescope mount to carry this OTA.
	Celestron CGX Equatorial Mount and Tripod The Celestron CGX Equatorial Mount and Tripod is a compatible computerised telescope mount to carry this OTA.

 

About Celestron

Imagine a humble beginning – a 6-inch reflector telescope crafted by Tom Johnson for his young son. This was the spark that ignited a transformative journey. As time passed, his designs evolved into larger, more sophisticated scopes. Today, Celestron shines as an industry trailblazer, renowned for crafting precision optical equipment. From computerised marvels to traditional telescopes, binoculars, spotting scopes and more, Celestron's portfolio is a universe of possibilities. With a legacy spanning over 50 illustrious years, Celestron has earned admiration from both avid hobbyists and dedicated astronomers worldwide. But they don't rest on their laurels; innovation propels them forward. They constantly broaden their product horizons while illuminating minds through global science education initiatives. Celestron's story is one of innovation, evolution and a passion for the cosmos. Join them on this extraordinary journey of discovery and inspiration.

Product Code: 91030-XLT