iOptron 6" Ritchey-Chrétien, CEM26 Mount and Tripod Bundle
An entry-level goto system with iOptron's CEM26 mount and 6 inch RC telescope. Currently, we offer the following combinations.
Bundle composition :
- 6” Ritchey-Chrétien telescope (#)
- 6x30 Finder with bracket
- CEM26 mount and tripod (#)
- 1.25” diagonal
- 25mm plossl eyepiece
- 10lb counterweight ()
- 5lb counterweight ()
The iOptron® Photron™ Ritchey-Chrétien 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.
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Like their predecessors, the CEM26 is designed with portability in mind, weighing in at only 10 lbs it can support up to a 26lb payload an incredible 2.6 mount weight to payload ratio. The key to enable such ratios is the CEM design focuses the mount and payload weight directly on the center of the tripod rendering “natural stability”.
Building on the legacy of earlier CEM models we have added features for convenience and functionality. A positive lock gear engagement system (easy to use even when wearing gloves). A high resolution optical encoder with real-time PEC delivers accurate tracking with PE <0.3 arcsec RMS. Built-in Wi-Fi enabling unparallel connectivity. The CEM26 sets the new standard for compact equatorial mounts.
The center-balanced design mount puts the weight of the payload at the center of gravity allowing for greater natural stability. Other features include an adjustable counterweight bar to prevent obstruction with the tripod. And polar aligning is quick and accessible all the time since the polar scope is not blocked by the declination shaft.
The CEM26 is equipped with the latest advanced GOTONOVA® GOTO technology, making it one of the most powerful and accurate GOTO mounts available. Its database includes over 212,000 objects. The Go2Nova® Hand Controller is intuitive to use and its large 4-line LCD screen simplifies the process of setting telescopes and locating objects.
The CEM26EC mount has an integrated electronic polar finder scope known as the iPolar. This tool ensures the accurate alignment of a telescope, even when the pole star is obscured. It comes with a 1.5" heavy duty stainless steel tripod and an aluminum carrying case.
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Technical Specifications
Photron 6" Ritchey-Chrétien Specifications
| 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 |
CEM26 Mount Specifications
| Mount | Center-Balanced Equatorial Mount |
| Payload * | 26 lbs (12kg), exclude counterweight |
| Mount weight | 10 lbs (4.5kg) |
| Payload/Mount weight | 2.6 |
| Structure Material | All metal, Casting CNC machined |
| Exterior Finish | Powder coating |
| Periodic error (PE) ** | <±10 arcsec |
| PEC | Yes, Permanent PEC |
| Worm period | 600 sec |
| Right Ascension worm wheel | Φ88mm, 144 teeth aluminum |
| Declination worm wheel | Φ88mm, 144 teeth aluminum |
| Right Ascension axis shaft | Φ35mm steel |
| Declination axis shaft | Φ35mm steel |
| Right Ascension bearing | Φ55mm ball bearing |
| Declination bearing | Φ55mm ball bearing |
| Worm gears | Φ15.2mm, Brass |
| Motor drive | 1.8º stepper motor, 128X microdivision |
| Resolution | 0.17 arc seconds |
| Transmission | Synchronous belt |
| Latitude adjustment range *** | 0º ~ 60º |
| Azimuth adjustment range | ± 6º |
| Polar Scope | AccuAlign TM optical polar scope |
| Level indicator | Level bubble |
| Hand Controller | Go2Nova® 8409 with ~212,000 objects database |
| Tracking | Automatic |
| Slew speed | 1×,2×,8×,16×,64×,128×,256×,512×,MAX(6º/sec) |
| Power consumption | 0.5A(Tracking), 0.8A(GOTO) |
| Power requiremention | 12V DC, 5A |
| AC adapter | 100V ~ 240V (included, indoor use only) |
| Power-down memory | Yes |
| Wi-Fi | Built-in |
| Communication port | Yes (Wi-Fi and USB) |
| Autoguide port | Yes (ST-4 compatible) |
| Firmware upgrade | Yes |
| PC computer control | Yes (ASCOM) |
| Counterweight shaft | Φ20X200mm with a 120mm extension (M16, SS) |
| Counterweight | 10 lbs (4.5kg) |
| Tripod | 1.5" Stainless Steel (5kg) |
| Dovetail saddle | 3.8" Vixen-style, center adjustable |
| Hard case | Included |
| GPS | Optional external 32-channel GPS |
| Autoguiding | Optional external iGuider 1 |
| Operation temperature | -10ºC ~ 40ºC |
| Warranty | Two year limited |
In the Box
Bundle composition :
- 6” Ritchey-Chrétien telescope (#)
- 6x30 Finder with bracket
- CEM26 mount and tripod (#)
- 1.25” diagonal
- 25mm plossl eyepiece
- 10lb counterweight ()
- 5lb counterweight ()
Warranty & Manuals
iOptron 2-Year Warranty
