Speed Crayford Focuser
 |
Orion 10" f/3.9 Newtonian Astrograph Reflector Telescope
Sale Price: $599.99  |
DescriptionOur 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 apo 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
|
 |
No items matching your keywords were found.
|
Orion 10" f/3.9 Newtonian Astrograph Reflector Telescope
Sale Price: $599.99 |
DescriptionOur 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 apo 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
|
 |
Orion Long 2" Adapter for Crayford-Type Telescope Focuser
List Price: |
DescriptionThis extension adapter is designed for use with the Orion 2" Crayford-type focuser (#13039). The adapter provides the extra height needed when the focuser is used with Orion 203mm f/4.9 and 254mm f/4.7 reflectors. The adapter is not required on Orion Dobsonians. Features
|
 |
Orion 2" Low-Profile Dual Speed Crayford Telescope Focuser
List Price: |
DescriptionDesigned to fit 8" and 10" reflectors, this premium focuser offers unmatched precision for serious observing and photographic applications. Its anodized-aluminum construction easily supports heavy 2" eyepieces or imaging cameras. Smooth roller-bearing design completely eliminates image shift. The low-profile design has 68mm of travel (including integral 44mm drawtube extension). Features
|
 |
Barska Magnus 80ED Refractor Telescopew/20mm Eyepiece & Hard Case
List Price: |
DescriptionBarska Magnus 80ED Refractor Telescope pulls in planets and other heavenly bodies in breathtaking detail! One of the finest compact telescopes you'll find! The Barska Magnus 80ED Refractor Telescope's Extra Low Dispersion (ED) glass and multi-coated optics produce images that are sharp edge-to-edge with no chromatic aberration (also known as color fringing). Even better, the dual speed Crayford-type focuser provides incredible precision focusing while the dielectric coating in the included diagonal means 99% light transmission to the Pl ssl eyepiece. The Magnus 80 ED is ideal for planetary observation, wide field imaging or crisp high power observing. Here's the full details: Wide 80 mm objective lens is made from premium ED glass (Extra Low Dispersion) and is virtually free of chromatic aberration; Fully multi-coated ED triplet optical design guarantees minimal change in refractive index with different wavelengths of light for crisp, high resolution images; Focal length 550 mm; Focal ratio: 6.8; Maximum magnification: 27.5x; Precise, dual-speed Crayford focuser lets you fine tune for sharp images; 2", 90 degree erect image diagonal with dielectric mirror for easy observation; Includes 20mm Pl ssl eyepieces for viewing; Each component stores in the included deluxe foam-lined hard carrying case; Mounts on any standard tripod (not included); Includes Deepsky Astronomy Software; Approx 14 lbs.; Gazing at planets, galaxies and nebulae in the night sky or viewing Earth's natural wonders has never been easier or more enjoyable. Order Today! Barska Magnus 80ED Refractor Telescope Features
|
