Type
Used Schmidt-Cassegrains
A Schmidt-Cassegrain, or SCT, bounces light off a spherical main mirror at the back to a small mirror on a thin glass corrector plate at the front, then back out through a hole in the main mirror. Folding the light that way packs a long focal length into a short tube, so an 8-inch f/10 SCT is only about 17 inches long. You focus by moving the main mirror, so a little image shift is normal. Used, the corrector is the part to check, because damp storage can leave haze or fungus on its inside face. Many SCTs also came on computerized mounts, which need their hand controller and power to work.
9 models we cover.
Celestron
Schmidt-CassegrainCelestron C8
- Years made
- 1970 on
- Key spec
- 203 mm · f/10
$675–$1,800 typical ask
18 on eBay
Celestron
Schmidt-CassegrainCelestron C11
- Years made
- Key spec
- 279 mm · f/10
$2,675–$3,600 typical ask
9 on eBay
Celestron
Schmidt-CassegrainCelestron C14
- Years made
- 1972 on
- Key spec
- 356 mm · f/11
$3,625–$3,650 typical ask
1 on eBay
Celestron
Schmidt-CassegrainCelestron NexStar 8SE
- Years made
- Key spec
- 203 mm · f/10
$1,375–$1,875 typical ask
29 on eBay
Celestron
Schmidt-CassegrainCelestron EdgeHD 8
- Years made
- 2009 on
- Key spec
- 203 mm · f/10
$2,325–$2,850 typical ask
10 on eBay
Meade
Schmidt-CassegrainMeade LX200 8-inch
- Years made
- 1992 on
- Key spec
- 203 mm · f/10
$1,200–$1,450 typical ask
9 on eBay
Meade
Schmidt-CassegrainMeade LX200 10-inch
- Years made
- 1992 on
- Key spec
- 254 mm · f/10
$2,750–$3,275 typical ask
12 on eBay
Meade
Schmidt-CassegrainMeade LX90 8-inch
- Years made
- Key spec
- 203 mm · f/10
$2,500–$2,500 typical ask
4 on eBay
Meade
Schmidt-CassegrainMeade LX90 10-inch
- Years made
- ACF generation from 2008
- Key spec
- 254 mm · f/10
$2,100–$2,375 typical ask
2 on eBay