About this product
Part Number: 6111
Incredible value 6" f/9 iOptron Photron Ritchey-Chrétien
An excellent choice for imaging smaller galaxy and nebulae targets.
IOptron Photron Ritchey-Chrétien telescopes feature low thermal expansion quartz primary and secondary mirrors with 99% percent reflective dielectric coatings.
The RC optical design delivers images free of coma, spherical and chromatic aberrations so is an excellent choice for colour or monochrome imaging.
A fixed position primary mirror eliminates image shift that normally occurs when focusing some other telescope designs. It also features a 2" dual-speed rotatable Crayford focuser.
Three CNC-machined spacer rings are included that provide flex-free focus extension when required.
Interior knife edge baffles reduce stray light for maximum contrast.
Fitted with a Vixen-style dovetail mounting plate.
- 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
- Optional iOptron Electric Focuser (#8451)
The telescope is supplied with 2x 25mm and 1x 50mm CNC-machined focuser extension rings with matt-black interiors.
Telescope Field of View Simulator
What's in the box
- OTA w/2" dual speed Crayford focuser
- 2x 25mm Focuser Extensions
- 1x 50mm Focuser Extension
- 2" to 1.25" Adapter
- Vixen dovetail bar
|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 ||48.5cm / 19.1” |
|Tube Weight ||5.4 kg / 12 lbs |
|Other Accessories ||2” to 1.25” compression ring adapter; |
1" long extension tube X2
2" long extension tube X1
|Gross Weight ||8.2 kg / 18 lbs |
|Warranty ||Two year limited |
Downloads / Manuals
Manual: Photron RC telescope operation manualElectric focuser installation and operation manual
|Average Rating (1 Review): |
Friday, 9 August 2019 | Shiela
The telescope is very nice and easy to handle for my poor back. The only negative is its back heavy when attaching a camera and you got to place it in the mount hight up in the saddle . A longer dovetail rail might help, but I just attached a counter-weight to the front end of the telescope to get good balance.
It was well collimated out of the box. Im please to say. Its great for deep sky imaging, with my DSLR , having already got some nice photos off M27, and M81-M82. I dont think f9 was a hindrance, as 2minute exposure clearly showed the brighter messier. objects.
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