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Astronomy > Telescopes > TS Optics > Carbon Truss Tube > TS Optics Ritchey-Chretien RC 406/3250 Carbon OTA
Product no.: 47241

Ritchey-Chretien RC 406/3250 Carbon OTA

$ 8,700.00 incl. VAT plus shipping costs
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advice for Astronomy

Product description

A dream telescope for astrophotography!

The Ritchey-Chretien optics with f/8 deliver very good imaging without the use of additional correctors and also allow the use of cameras with large sensors.

The advantages:

  • Authentic RC optics with hyperbolic primary and secondary mirrors
  • Quartz primary and secondary mirrors - no temperature-dependent focus drift
  • The secondary mirror has a central mark for precise system collimation
  • 99% reflection with dielectric tempering on the primary and secondary mirrors for a bright image
  • Large, even and coma-free field without a corrector - ideal for astrophotography
  • Sufficient back focus for additional optical accessories: 233mm from the back of the tube, 127mm from the focuser's 2” adapter

Thanks to the lightweight yet extremely rigid carbon truss tube construction, the telescope is relatively lightweight. This means that you can save on the mount. The “smaller” GSO RC models are still transportable. Further advantages of this open structure include its fast cooling time and minor dew problems when compared to Schmidt-Cassegrain optics.

Ritchey-Chretiens were amongst the most expensive telescopes until recently. Thanks to GSO, we can offer you RC astrographs at affordable prices.

TS Optics is a brand of Teleskop-Service.

It not only matters which telescope you buy but also where you buy it. Our additional services:

  • We are a leading telescope dealer and know the devices we sell. Our customer service team will gladly help you after your purchase if you have problems with assembly or operation.
  • We provide a copy of the 80-page Telescope ABC beginners handbook with every telescope.

Specifications

Optics

Aperture (mm)
406
Aperture ratio (f/)
8
tube diameter (mm)
565
Tube weight (kg)
37
Tube construction
Truss Tube
Tube length (mm)
1114
Tube material
Carbon
Type
Reflector
Coating
Aluminium and silicon dioxide
Resolving capacity
0,28
Type of build
Ritchey-Chretien
Focal length (mm)
3250
Limit value (mag)
14,8
Light gathering capacity
3360
Max. useful magnification
812

Reflector

reflectivity
99
Secondary mirror diameter (mm)
191
Ventilation for central mirror
yes
Secondary mirror material
Quartz
Main mirror´s construction
hyperbolic
Primary mirror - Material
Quartz

Focuser

Connection ( to eyepiece)
3
Type of build
Monorail
Gear reduction
1:10 fine focusing

Mount

Mounting type
no mount
Type of build
OTA

Included accessories

Prism rail
Losmandy-Style
Eyepiece adaptor
2" - 3"

General

Series
Carbon Truss Tube

Area of application

Astrophotography
yes
Nature Observation
no

Recommended for

Beginners
no
Advanced
yes
Observatories
yes
show more...

Product safety

manufacturer: Teleskop-Service Ransburg GmbH, Von-Myra-Straße 8, 85599 Parsdorf, DE, www.teleskop-express.de
Product safety

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*All prices include VAT plus shipping costs.

show more...
TS Optics Ritchey-Chretien RC 406/3250 Carbon OTA

Monorail focuser (a further development of the Crayford focuser)

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