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Orion 10 F39 tonian Astrograph Reflector Telescope : TelescopePlanet.org.uk

Orion 10 F39 tonian Astrograph Reflector Telescope

£692.99

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Description

Introducing: Orion 10 F39 tonian Astrograph Reflector Telescope

With Sturdy 2" dual-speed low-profile Crayford focuser permits ultra-fine focus with 11:1 ratio and Extended tube length of 7.5" in front of the focuser blocks peripheral light, optimizing image contrast, the 08296 from Orion, now supplied for everyone to purchase here at our great price.

Buy the 08296 right now and benefit from quick, dependable shipping direct to your front door.

Manufacturer Description

Our largest reflector optimized for astro-imaging boasts 10-inch parabolic primary optics with a very fast f/3.9 focal ratio for exceptional wide-field, deep-space imaging performance. Even faint galaxies and nebulas exhibit stunning detail with limited exposure time when photographed through this large-aperture astrograph with a CCD imager or DSLR camera. You'll get incredibly bright, crisp images that will make apochromatic refractor aficionados green with envy - and you'll have more green in your wallet thanks to this telescope's more-affordable Newtonian design. Both the 10-inch (254mm) primary and secondary mirror feature enhanced reflectivity (94%) aluminization for bright, contrast-rich images. The 82mm minor axis secondary mirror provides excellent full-field illumination with modern CCD imagers and DSLR cameras, with less than 8% light drop-off at the edge of APS-C sized sensors. The adjustable 4-vane secondary mirror holder features very thin, 1mm thick spider vanes to minimize diffraction effects in images. A center mark on the primary mirror and three easy-grip collimation knobs make optical alignment easy and precise. Extended tube length of 7.5-inches in front of the focuser blocks intrusion of off-axis light, ensuring optimum image contrast.

Features

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