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Optical tube ONLY. This is not a beginner telescope. No diagonal, eyepieces, mount, or other accessories.
The iOptron Photron Ritchey-Cretien design telescopes feature low thermal expansion quartz primary and secondary mirrors with ninety-nine percent reflective dielectric coatings. The RC optical design delivers coma, spherical and chromatic aberration free results, perfect for color or monochrome imaging. A fixed position primary mirror eliminates image shift that occurs from focusing with other telescope designs. The iOptron RC6 comes with a 2" dual-speed Crayford focuser. Three focuser extension rings are provided for a “flex-free” solid extension as a means to take up any unneeded back focus. Its steel tube is equipped with knife edge baffles to diminish contrast-reducing stray light, improving the instrument in both visual and imaging uses. A RC6 model comes with a Vixen style dovetail plates.
- Coma free, chromatic aberration-free, spherical aberration-free optics
- 150mm (6") optical aperture
- 1370mm focal length
- f/9 focal ratio
- Fixed primary
- Low thermal expansion quartz mirrors
- Multiple knife-edge baffle system
- 2" dual-speed Crayford focuser
- Finder scope base and dovetails bar
- Optional finder scope, diagonal and 1.25" eyepiece
| Optical Design | Ritchey-Chretien |
| Clear Aperture | 150mm |
| Focal Length | 1370mm |
| Focal Ratio | f/9 |
| Resolving Power | 0.76 arc seconds |
| Limiting Magnitude | 13.6 |
| Highest Useful Magnification | 180X |
| Secondary Mirror Size | 67mm |
| Focuser | 10:1 Crayford dual-speed |
| Focuser size | 2” |
| Dovetail Bar | Vixen-style |
| Finderscope Base | Yes |
| Finder scope | Optional |
| Tube material | Steel |
| Tube Length | 19.1” |
| Tube Weight | 12 lbs |
| Other Accessories | 2” to 1.25” compression ring adapter; 1" long extension tube X2 2" long extension tube X1 |
| Gross Weight | 18 lbs |
| Warranty | One year limited |
#6111 6" RC OTA only
- OTA w/2" dual speed Crayford focuser
- 2X25mm, 1X 50mm focus extension tubes
- 1.25" accessory adapter
- Vixen dovetail bar
- Finder scope base