GSO 6 "f / 9 Ritchey-Chrétien - 152 / 1370mm RC - ACTION

GSO 6 f / 9 Ritchey-Chrétien - 152 / 1370mm RC - ACTION
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Product no.: TSRC6M
MPN: TSRC6M
Our previous price 639,00 EUR Now only 555,00 EURyou save 13% / 84,00 EUR
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Products description

Test und Justage GSRC6M GSO 6

Test and Adjustment GSRC6M GSO 6
This telescope is checked, measured and adjusted if necessary before delivery. The focuser is set.


How we adjust: About us



Please contact for advice on this telescope. So you can benefit from our experience before buying

 

GSO 6 "f / 9 Ritchey-Chrétien - 152 / 1370mm RC - ACTION

6 "f / 9 RC Astrograph - 152mm aperture / 1370mm focal length

RC telescope for astrophotography and observation at a high level


Until now, true RC telescopes were not only known for their good optical data, but above all for their high price. The well-known US manufacturer "Astro-Tech" then commissioned GSO, which is known for very good mirror optics, with the production of two real RC telescopes. The result is two real astrographs, well above the level of typical Schmidt Cassegrains, at an affordable price. Teleskop-Service has taken over the Europe-wide distribution of these devices from GSO.

The advantages of the 6 "f / 9 RC over similar systems:

- higher light intensity than Celestron 6 "SC Telescope or Skywatcher 6" Maksutov
- larger illuminated field than Celeston SC or Skywatcher Maksutov
- faster cooling and no comparable Tauprobleme, as with Skywatcher or Celestron
- Full usability of DSLR cameras with better illumination of the APS chip
- no shifting problems, because the main mirror is fixed
- Better adjustability because main and secondary mirrors are adjustable. The Skywatcher Mak is only the main mirror.

The 6 "f / 9 Astrograph offers everything the dedicated astrophotographer expects from a single device in a very compact size.This rugged device is also suitable for air travel due to its compact dimensions.This device has a metal tube.This device size is a carbon fiber Tube not required.

How do I focus on the 6 "RC?

Photographically: The 6 "RC has a generous back focus, which allows the use of extensive accessories If you want to shoot with a DSLR and want to have the focuser in a moderate position, you need:

50mm spacer - that comes between focuser and telescope
Adapter to T2 with 40mm extension.

Visually: If you want to use a 2 "diagonal mirror, you will need the GSRCV25 in front of the drawer (more elegant and sturdier) or the TSV235 behind the drawer.When working with a 1.25" diagonal mirror, you will need the 50mm extension sleeves.

The items you are welcome to inquire.

The most important data:

Optical design:
true RC system consisting of a hyperbolic main and a hyperbolic secondary mirror.
Optical data:
Opening 6 "(152mm), focal length 1370mm, aperture ratio f / 9
Primary mirror:
from BK-7 - surface quality 1/12 Lambda or better - The main mirror is permanently installed in the tube. The main mirror is provided with a 99% reflection layer and dielectrically tempered.
Secondary mirror:
from BK7 with 99% reflection - mounted is the secondary mirror in a robust cell that is adjustable. On request, we provide an adjustment aid (three points) for the adjustment with laser at the secondary mirror. Diameter of the catching mirror with holder (total shading) - 77mm
Optical tube:
Tubus, main and secondary mirror cells are made of metal.
The weight of the optical tube with optics is 5,4kg.
Tube length approx. 50cm with 2 "focuser
Tube diameter 191mm
Rail length (GP rail) 325mm
Computer optimized inner panels:
The inner tube is provided with inner panels, which prevent the ingress of stray light.
The focuser:
The Crayford focuser offers the standard adjustment and a 1:10 micro reduction, which is especially used for astrophotography. It guarantees shifting-free adjustment and can be loaded up to approx. 5 kg of accessories. Eyepieces, diagonal mirrors or camera accessories are gently clamped with brass rings. The pullout accommodates 2 "and 1.25" accessories.

Since the extension tube is mounted on a solid stainless steel rail and no longer on small ball bearings, the focuser is very resilient.
Montierungsadaption:
At the base of the RC telescope is a prism rail that has GP level, so the RC fits any Vixen mount and similar mounts.

GSO RC 6 inner panel system

Technical specifications:

- RC system consisting of 2 mirrors
- Opening 152mm
- Focal length 1370mm
- aperture ratio f / 9
- Resolution on the axis 0.76 "
- Reflection on both mirrors 99% with the diel. protective layer

Delivery:

- 6 "F / 9 RC Astrograph
- 2 "focuser with reduction to 1.25"
- Prism rail GP level
- German-language adjustment instructions

The optical advantages of astrographs from GSO:

Optical Design - Ritchey Chrétien / RC
The GSO Astrograph is a true Ritchey-Chrétien reflector. In contrast to Maksutovs or Schmidt Cassegrains, which use spherical mirrors and corrector lenses, or Newton's, who need a coma corrector for astrophotography, the RC system is a pure reflection system with no color aberration, which works with two mirrors.

The RC system has a concave hyperbolic primary mirror and a convex hyperbolic secondary mirror.

The result is a comfree and large field of view, free of disturbing aberrations, which can be used for astrophotography but also for observation. The sharpness on the axis is higher and the usable field of view is larger than that of typical SC telescopes, Maksutovs or Newton's.

Because of these advantages, the Ritchey Chrétien system is mostly produced for astrophotography. This system is mostly used by professional large telescopes. Examples of RC systems are the 10 meter Keck telescope in Hawaii or the modern four 8.2 meter telescopes of the VLT in Chile. Now this system is also available to the amateur without NASA Budged for a moderate price.


Mirror with 99% reflection and a dielectric protective layer
The main mirror of the 6 "RC telescope is made of homogenous BK7 material.The main mirror of the 8" RC is made of quartz material, which, like Zerodur, has no disturbing expansion value. The main and secondary mirrors are provided with a 99% reflection layer, which is protected against scratches and aging by a dielectric layer. The result is a much brighter picture than comparable devices.


Every optic is tested before shipment
Each RC is tested and collimated at TS, before shipment, on the optical bench. This guarantees that you only get very good looks that will give you pleasure for many years to come.

_____________________________________________________________________________________________

The mechanical advantages of astrographs from GSO:

Fixed main mirror cell and computer-optimized inner panels
In contrast to conventional systems, where the main mirror is moved, the main mirror of the GSO RC telescopes is fixed. This prevents unwanted shifting and the optics are always optimally centered. Within the tube and the baffle tube, there are computer-optimized apertures, which further increase the contrast and prevent the ingress of stray light.


Adjustment of the system via the secondary mirror
Since the primary mirror is fixed in its optimized position, the adjustment can be achieved effectively and easily via the secondary mirror. The adjustment process is very simple and can be done by inexperienced amateur astronomers.



GSO 6 Inch RC on Celestron Advanced Goto Mount



Note for visual use:
In order to get into focus, you will need the TSV250 extension for 2 "Zenith mirror and the TSV250 for 1.25" diagonal mirror.
GSO 6 f / 9 Ritchey-Chrétien - 152 / 1370mm RC - ACTION
GSO 6 f / 9 Ritchey-Chrétien - 152 / 1370mm RC - ACTION
GSO 6 f / 9 Ritchey-Chrétien - 152 / 1370mm RC - ACTION

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