OTA · 1970–
Celestron C8 (Orange Tube)
Key specifications
| Aperture | 203 mm |
|---|---|
| Focal length | 2032 mm |
| Focal ratio | f/10 |
| Optical design | Schmidt-Cassegrain |
About
Vintage Celestron 8" schmidt-cassegrain (2032mm f/10). The original 1970 Celestron 8 -- the SCT that launched the mass amateur market at under $1000. Fork-mounted, AC spur-gear drive, setting circles, distinctive orange tube (early tubes used lead-based paint).