StellaLyra 6'' f/9 M-CRF Ritchey-Chrétien Telescope OTA
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StellaLyra 6'' f/9 M-CRF Ritchey-Chrétien Telescope OTAStellaLyra 6'' f/9 M-CRF Ritchey-Chrétien Telescope OTAStellaLyra 6'' f/9 M-CRF Ritchey-Chrétien Telescope OTA
StellaLyra 6'' f/9 M-CRF Ritchey-Chrétien Telescope OTAStellaLyra 6'' f/9 M-CRF Ritchey-Chrétien Telescope OTAStellaLyra 6'' f/9 M-CRF Ritchey-Chrétien Telescope OTA

StellaLyra 6" f/9 M-CRF Ritchey-Chrétien Telescope OTA

£459.00
  (2 Reviews)
✓ 2 year warranty

:  

5x in stock shipped 1-2 working days

About this product

Model:  stellalyra_6_rc

Incredible value 6" f/9 StellaLyra Ritchey-Chrétien

An excellent choice for imaging smaller galaxy and nebulae targets. 

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.

FEATURES

  • Coma free, chromatic aberration-free, spherical aberration-free optics
  • 153mm (6") optical aperture
  • 1370mm focal length
  • f/9 focal ratio
  • Fixed primary
  • Quartz primary and secondary mirrors
  • Primary mirror: Hyperbolic primary mirror with enhanced Al coating to 95% reflectivity
  • Secondary mirror: Hyperbolic with enhanced Al coating to 95% reflectivity
  • Multiple knife-edge baffle system
  • 2" dual-speed Crayford focuser
  • Vixen/Synta Style Finder scope base
  • Vixen-Style 44mm Dovetail

Extensions

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

  • Telescope OTA
  • 2" to 1.25" Adapter
  • 2x 25mm Focuser Extension Adapters
  • 1x 50mm Focuser Extension Adapters

Specifications

  • 6" F/9 M-CRF Ritchey-Chrétien OTA (black):
  • Ritchey-Chretien optical tube assembly w/6" F/9 primary mirror
  • Dual speed 2" Crayford-style focuser with 1.25" eyepiece adapter
  • Vixen-style dovetail rail
  • 1x 50mm / 2" and 2x 25mm / 1" extension rings
  • Vixen-style finder base (finder not included)
  • Front dust cover
  • Aperture: 153mm (6")
  • Focal ratio: f/9
  • Focal length: 1370mm
  • Primary mirror: Hyperbolic primary mirror with enhanced Al coating to 95% reflectivity
  • Secondary mirror: Hyperbolic with enhanced Al coating to 95% reflectivity
  • Secondary mirror holder: 4-vane all metal spider
  • Tube outside diameter = 193mm / 7.6" including end rings
  • Tube length = 391mm / 15.4”
  • Tube weight (with included accessories): 5.61kg / 12lbs-6oz
  • Shipped size: 61cm x 29cm x 33cm / 24" x 11.5" x 13"
  • Shipped weight: 7.45kg / 17lbs-9oz

Customer reviews

Average Rating (2 Reviews):  
Write a Review and share your opinions!

Rating (max 5):  
StellaLyra RC6 OTA
Monday, 18 October 2021  | 

I've had the telescope for about a week now, and as always it came with clouds . Last night was clear although the moon was a bit distracting, first impressions are that this is a quality telescope, with edge to edge clarity, decent focusser, and with the extension tubes it works for all of my equipment. With and 2" diagonal, and celestron 15mm omni plossl, the views are outstanding. I can certainly recommend this.


Rating (max 5):  
Super value telescope
Wednesday, 14 April 2021  | 

Had proper first light with the telescope last night. Very impressed with the quality of the scope. My stars were round right to the edge of the field of view and the scope was perfectly collimated out of the box. Focal length is just long enough to give excellent magnification on galaxies and clusters but not too long to make image scale a problem.

The only slight negative with the scope is that even when mounted on full extent of vixen dovetail the scope is badly out of balance on the declination axis. I have had to purchase a counterweight to fit to the front of the telescope. This problem is further compounded by the fact that I needed to fit all four (ie. 4”) of draw tube extension onto the focuser to get the scope into focus. Once you add filter wheel, oag and camera it is very out of balance. I suspect visual astronomers will also have same balance issue but not to the same extent.

The other minor point is that there is no M48 or M42 thread or adaptor provided for attaching to the focuser. The only means of attaching cameras and eye pieces is using the supplied 2” or 1.25” compression ring with a nose piece fitted to camera/oag/filter wheel. The compression rings are of the anti marring type.

Bottom line is that you are paying for a scope and no useful additional accessories, but at the price I appreciate that all the investment has gone into optimising the quality of the scope. I quite happy purchasing the extra components to complete the setup.

FAQ

Please fill in the form below to ask a question.

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Q1. Will it accept a Baader SteelTrack focuser?

Yes :-)
The Baader SteelTrack RT will fit:
https://www.firstlightoptics.com/baader-diamond-steeltrack-focusers/baader-steeltrack-diamond-rt-for-refractors.html
Using Baader adapter 2957283:
https://www.firstlightoptics.com/baader-diamond-steeltrack-focusers/baader-steeltrack-diamond-rt-adapter-m90x1-for-refractors-gso-rc-scopes.html

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