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Celestron 8 Inch Schmidt-Cassegrain OTA with CG-5 Mount Plate

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  • $975.00
  • Regular price $1,059.95

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Accessories Added

  • 203.2 mm (8 Inch) Schmidt-Cassegrain Optical Tube Assembly
  • StarBright XLT Optical Coatings
  • Use your 1.25 Inch Accessories
  • 6x30 Finderscope
  • The Dovetail Plate for CG-5 Advanced Series Mounts


Celestron 8 Inch Schmidt-Cassegrain OTA with CG-5 Mount Plate

This Celestron 203.2 mm (8 Inch) Schmidt-Cassegrain Optical Tube Assembly (OTA) is available individually to be used with your favorite mount. Each OTA is made to the same exacting standards as those used on all their high-quality telescopes. All optical surfaces are coated with StarBright XLT coatings. These tube assemblies are equipped with the same dovetail mounting bar as used on CG-5 style (Vixen Style) or CGE (Losmandy style) mounts for easy attachment to a variety of popular mounts.

Besides seeing all of the Messier Catalog objects, you can also see hundreds of other, less famous, but equally interesting NGC, IC, and Caldwell objects. Turn this scope to the planets and see amazing detail on the surface of Jupiter; see Cassini's Division in the rings of Saturn, and resolve details on the surface of Mars. Even the distant Uranus, Neptune, and Pluto are within your reach.

The Celestron C8 is Celestron's first new Schmidt-Cassegrain optical system in over a decade. The new 8 Inch Schmidt-Cassegrain features a precision optical system with 2032 mm focal length, focal ratio of f/10, and comes standard with Celestron's StarBright XLT coatings at no extra cost.

What's more, you have Celestron's guarantee of uncompromising quality backed-up with a Two Year warranty. Celestron warrants your telescope to be free from defects in materials and workmanship for two years. Celestron will repair or replace such product or part thereof which, upon inspection by Celestron, is found to be defective in materials or workmanship.


Aperture203 mm (8")
Focal Length2032 mm
Focal Ratiof/10
Free ShippingYes
Optical CoatingsCelestron XLT
Optical DesignSCT
OTA Length17"
OTA Mount TypeCG 5 Dovetail
OTA Weight12.5 lbs.
Telescope SeriesCelestron Optical Tubes
Warranty2 Year Warranty


  • 203.2 mm (8 Inch) Schmidt-Cassegrain XLT OTA
  • 6x30 Optical Finderscope
  • 1.25 Inch Star Diagonal
  • 1.25 Inch Eyepiece/ 25 mm, 81x Mag.
  • Dovetail Mounting Plate, for CG-5  mounts or for CGE Mounts
  • 2 Year Warranty

Customer Reviews

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David N.
United States

Upgrade to 8"

I bought my AVX mount with the 6" OTA. While an excellent scope and super portable, it was, after all, 6" aperture. The 8" is an excellent scope as well. Collimation looks spot on out of the box. Very smooth focusing and the handle at the back is helpful. It's not all that heavy, but gives more security when handling the OTA. Pet peeve - the finder. 6 x 30? Seriously? I get the tradeoffs but still... Also the position on the tube. It's too close to the eyepiece. I had to turn the eyepiece to the side for access. The AVX mount had no problem at all with the single counter weight being more than enough. As for the view, the improvement is quite notable, even under o.k. but not especially dark skies. Physics doesn't lie. A much better view of M-13. Clean split of the double double. M-57 neat and clear. Through out, stars were sharp and focused cleanly.

George S.
United States

OPT - Always excellent

I've only had a couple opportunities to use it. This is a replacement for an old C8. What a difference 25 years makes. The images are so. Much. Brighter. It arrived collimated right out of the box (how do they do that after shipping?). Everyone should own a C8.

United States

I Will Come Back

Received items quicker than expected.

wayne n.
United States

Celestron 8 Inch Schmidt-Cassegrain OTA with CG-5 Mount Plate

great scope-this has been a dream to use. excellent quality and OPT has done it again. thank you OPT.