Astronomy Specialist

GSO 12" f/8 RITCHEY-CHRETIEN & ESATTO 3"

$6,479.00

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The Guan Sheng Optical (GSO) 12" f/8 Carbon Truss Ritchey-Chrétien is an excellent telescope for deep sky astrophotography. This bundle includes the Prima Luce Lab ESATTO 3", a highly accurate robotic microfocuser with a weight capacity of 8kg an incredible resolution of 0.04 microns per step.

Note: you will need to purchase an additional camera adapter for the ESATTO 3" to suit your equipment. 


 

GSO Ritchey-Chretien 304mm f/8 with truss carbon fiber tube and ESATTO 3" and the following optional accessories: EAGLE with PLUS dovetail clamp installed above the telescope.

 

The Guan Sheng Optical RC's are excellent astrographs with solid build quality and precisely-figured optical surfaces. The concave hyperbolic primary and convex secondary mirrors deliver excellent correction across the field. The low thermal expansion BK7 mirrors have a surface flatness of 1/12th wave or better and have highly reflective dieletric coatings ensuring 95% reflectivity.

The telescope is made with a rigid carbon fibre truss tube and features computer-optimized baffles to eliminate stray light.

Note: Ritchey-Chrétien telescopes are not intended for visual use.

 

Optical design Ritchey-Chrétien
Diameter 304 mm
Focal length 2432 mm
Focal ratio f/8
Linear obstruction 150 mm
Corrected field 30 mm (65 mm with optional corrector)
Backfocus distance 288 mm from rear cell
Weight 25 kg
Tube outer diameter 439 mm
Tube length 864 mm without focuser
SKU GSRC12A+ESATTO3

 

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