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Not Returnable
Please note that used items are not returnable.
This is a used C11 OTA with a CGE dovetail. It is about a dozen years old and in very good condition. This OTA has Starbright XLT coatings. Please note that this is the non-Fastar model. Other than normal dust with age, the optics are clean.
This is the OTA only, with just the 1.25" visual back and an 8x50 finder - no eyepieces or other accessories. However, it does come with a padded case.
- Aluminum Optical Tube
- Celestron's premium StarBright XLT coatings
- 2800 mm focal length (f/10)
- Visual back allows for use with 1.25" accessories
- 8x50 finderscope
- Includes dovetail rail compatible with CGE mount
- Includes padded case
Specifications
| Aperture (mm) | 279.4 mm (11 in) |
| Dovetail Compatibility | CGE Mount |
| Focal Length | 2800 mm (110 in) |
| Focal Ratio | 10 |
| Highest Useful Magnification | 660 x |
| Light Gathering Power (Comp... | 1593 x |
| Limiting Stellar Magnitude | 14.7 |
| Lowest Useful Magnification | 40 x |
| Optical Coatings | StarBright / XLT |
| Optical Design | Schmidt-Cassegrain |
| Optical Tube | Aluminum |
| Optical Tube Length | 24 in (610 mm) |
| Optical Tube Weight | 27.5 lbs (12 kg) |
| Resolution (Dawes) | 0.42 arc seconds |
| Resolution (Rayleigh) | 0.5 arc seconds |
| Secondary Mirror Obstructio... | 12% |
| Secondary Mirror Obstruction | 3.75 in (95 mm) |