Rc6 telescope


  • Astro-Tech 6" f/9 Ritchey-Chrétien astrograph
  • MDS-RC6- MDS Series Dovetail Bar for Astro Tech 6″ RC Telescope
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  • Astro-Tech 6" f/9 Ritchey-Chrétien astrograph

    Product description: Next night take it to the next level - Omegon RC telescope for astrophotographers Are you looking for an excellent telescope for astrophotography?

    Omegon Ritchey-Chretien telescopes will take you to the next quality level with your astronomy photos. Omegon RC telescopes provide a wide, coma-free field of view - perfect for round stellar images right out to the edge of the field of view. Find out exactly why an RC telescope is the right choice for astronomy photography and why the professionals also use them.

    They do not use spherical mirrors, such as in Schmidt-Cassegrain systems. This great idea gives you a big advantage - take better and sharper astronomy photos and enjoy a wider usable field of view! Ultra-sharp with APS-C chips. This technology was unaffordable even a few years ago, but the new Omegon RC telescopes are now affordable for every amateur astronomer. Photograph without needing a corrector Use your DSLR or astronomy camera with your telescope without needing a corrector, for coma-free and pin-sharp stellar images, right out to the edge of the field of view.

    The 8" and 10" models even allow you to use 24x36mm full-frame chips without any corrector. All professional DSLR cameras will fit and countless astronomy cameras too. And, if you still want to photograph in the medium format, please do not hesitate to ask us for appropriate solutions. Steel OTA for stable focusing and high contrast In addition to containing a good mirror, a steel OTA plays a decisive role in producing good astronomy photos.

    Precisely located stray-light baffles also ensure high contrast. It has no corrector plate and is hence an open system that adapts faster to the ambient temperature than an SC telescope. The absence of a front corrector plate also means that the telescope provides brighter images with no risk of internal reflections. Ritchey-Chretien systems are the most highly corrected two-mirror telescopes available. Their edge-to-edge image sharpness is impressive, so it is no wonder that practically all large research telescopes use this design of telescope in their professional observatories.

    Now affordable Making hyperbolic mirrors is both a science and an art. Up to only a few years ago, RC telescopes were among the most expensive telescopes in the world - only international institutions used them for research. But this technology is also now also affordable for experienced amateur astronomers. The 6" RC telescope weighs 5. The 6" RC telescope with the 44mm Vixen style rail fits on almost any mount for astrophotography.

    Use the spacers to adjust the focus position accordingly when using your own accessories.

    Ideal for smaller deep sky targets such as galaxies, small globular clusters and planetary nebulae. Add to this its small overall dimensions and suberb image quality and you can begin to understand why it is an excellent option for portable astro-imaging applications.

    The RC design uses no lenses or corrector plates so there is no false colour at all. It is also less prone to dew problems associated with corrector plates on Schmidt and Maksutov Cassegrain systems. These advanced coatings provide much higher light transmission compared to aluminium coatings on competing Schmidt Cassegrain telescopes. Dielectric coatings are also much more resistant to scratches and degradation over time. Each optical set is thoroughly tested by the manufacturer.

    For consistant quality each optical set is tested and hand-corrected after the automatic production with state-of-the-art machinery. Final testing of the optical set is performed by laser interferometry.

    Collimation of the secondary and primary mirror set is also performed by laser interferometer during final stages of assembly. Mechanical Advantages of the GSO RC Astrographs — Fixed primary mirror cell and focusing by Crayford focuser eliminates image shift — Computer-optimized baffle system to eliminate stray light.

    At the same time however RCs were always very expensive. GSO is best known for their excellent Newtonian optics which they have built for many years now. The result of this joint venture is an affordable RC that is superior in most aspects to a conventional Schmidt-Cassegrain. Bintel is an Australian distributor for these instruments from GSO.

    The RC design uses no lenses or corrector plates so there is no false colour at all. It is also less prone to dew problems associated with corrector plates on Schmidt and Maksutov Cassegrain systems.

    These advanced coatings provide much higher light transmission compared to aluminium coatings on competing Schmidt Cassegrain telescopes. Dielectric coatings are also much more resistant to scratches and degradation over time. Each optical set is thoroughly tested by the manufacturer. The iOptron RC6 has a long focal length and a slow focal ratio F9making this process more difficult than it is with a fast little refractor.

    This involves the correlation between the size of the imaging chip camera sensorand the telescopes focal length.

    MDS-RC6- MDS Series Dovetail Bar for Astro Tech 6″ RC Telescope

    Most planetariums and imaging software programs will calculate the most common camera chip sizes for you, or you can do the math for yourself. Richard Wright shared an excellent article on pixel scale for astrophotography in this Sky and Telescope article. Because a longer focal length shrinks the area of sky you see, the larger imaging chip in this DSLR is a better fit with the focal length of the Photron.

    Combining this telescope with a camera that houses a small imaging chip such as the Altair Hypercam M would make for an extremely restricted field of view. Historically, April and May are a great time of year to capture some serious light on this deep-sky target. The following photo was made using 70 x 4-minute exposures. The images were integrated with support frames including dark, bias and flat frames in DeepSkyStacker.

    The final stacked image was brought into Adobe Photoshop for final image processing, using the techniques outlined in this Photoshop tutorial. What I looked for was a flat field of view, sharp stars, and an increased resolution in my subject. I was thrilled to capture M in great detail than ever before, thanks to the increased aperture and focal length of the telescope. The image was captured during a nearly full moon, which made processing the image a challenge.

    A single 3-minute exposure ISO Removing some harsh gradients in the final image was the biggest obstacle.

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    I used a Photoshop technique that includes applying a synthetic flat frame and setting the blending mode to subtract. As always, adding more overall exposure time and improving the signal-to-noise ratio would improve the quality of this image immensely. Steel OTA for stable focusing and high contrast In addition to containing a good mirror, a steel OTA plays a decisive role in producing good astronomy photos.

    Precisely located stray-light baffles also ensure high contrast. It has no corrector plate and is hence an open system that adapts faster to the ambient temperature than an SC telescope. The absence of a front corrector plate also means that the telescope provides brighter images with no risk of internal reflections. Ritchey-Chretien systems are the most highly corrected two-mirror telescopes available. Their edge-to-edge image sharpness is impressive, so it is no wonder that practically all large research telescopes use this design of telescope in their professional observatories.

    Now affordable Making hyperbolic mirrors is both a science and an art. Up to only a few years ago, RC telescopes were among the most expensive telescopes in the world - only international institutions used them for research.


    Rc6 telescope