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This Vixen VC200L 8" f/9 Cassegrain Telescope is a highly corrected telescope specifically modeled for astrophotography. It features a unique catadioptric design with a highly accurate sixth order aspherical primary mirror, convex secondary mirror, and triplet corrector lens. In lieu of hooks, the primary mirror is held in place by a retaining ring in order to reduce flare and enhance contrast.
Vixen's VISAC system, an abbreviation for Vixen's Sixth-Order Aspherical Cassegrain, yields high definition stellar images to the edge of a wide field of view and allows for especially superior performance in astro-imaging. Stars will remain sharp (smaller than 15 micrometers) even at the fringe of larger 35mm film format CCD chips. As this is less than the resolution of many first-rate CCD cameras, the telescope will not affect the quality of the image. Thanks to its intricate aspherical optical design, this instrument attains excellent image correction completely through the large illuminated field (42mm diameter fully illuminated). Includes Vixen's Dual-Speed Focuser and compression ring.
Vixen has modified the design and construction of their cutting-edge SXD equatorial mount. The new SXD2 has a higher loading capacity along with more rigidity allowing for a steadier stage for astrophotography. Quiet stepping motors provide smooth slewing and fast command response.
Increased Loading Capacity: RA and DEC Axes are both manufactured from solid steel with brass wheel gears. This allows the mount the ability to take on loads of up to 50 lbs with counterweights included for astrophotography.
Smooth RA and DEC Movement: The interior of the new SXD2 is vastly different from prior SX Mounts. RA and DEC axes as well as the screw gear shafts now have added bearings. The worm screw gears are rigorously inspected for exact concentricity and are lapped in the whole circle for smooth movement.
Included with the SXD2 Mount is Vixen's new Starbook 10 controller, previously available only with the SXP Mount. The Starbook 10 consists of an enormous catalog of over 270,000 objects so that you'll be able to locate your desired target no matter where you are. Features a beautiful, full color, sizable LCD screen. Other convenient features such as night vision mode, brightness control, glowing control buttons, hibernate control, and bilingual options are also included with the Starbook 10. This controller also supplies backlash compensation; automatic Go-To performance; lunar, sidereal, solar, man-made satellite, and comet tracking modes; and both virtual and permanent PEC, advancing the SXD2 mount's gear efficiency.
|Area of application|
|Sun||not recommended (Only with appropriate Sun filter)|
|Focal length (mm)||1800|
|Resolving Power (theoretical)||0.58 arc sec|
|Magnitude limit (theoretical)||13.3|
|Light gathering capacity (in relation to human eye)||1100|
|Tube length (mm)||600|
|Tube weight (kg)||6|
|--Focuser--||2" Manual Rack & Pinion - Dual speed|
|Diagonal Type||Flip Mirror Diagonal|
|Type of build||Equatorial|
|Finder scope||7x50 Finder Scope|
|(Mountings & accessories)||-|
|Motor speeds||1200x max slewing speed|
|Worm gear teeth (piece)||180 Tooth|
|Power supply||DC12V, 0.4 to 1.7A|