Vixen VC200L: VISAC Catadioptric System for Astrophotography
Vixen's unique catadioptric design features a high precision sixth order aspherical primary mirror, a convex secondary mirror and triplet corrector lens. VISAC is an abbreviation for Vixen's Six-Order Aspherical Cassegrain. The primary mirror is held by a retaining ring, instead of hooks to decrease flare and enhance contrast.
The VC200L is an 8" f/9.0 highly corrected, highly specialized telescope for astro imaging. The VISAC provides high-definition star images to the edge of a wide viewing field and offers exceptionally outstanding performance in astrophotography. Even at the edge of the 35mm film format (larger CCD chips) stars are sharp (smaller than 15 micrometers) This is smaller than the resolution of fine quality CCD cameras, which means that the telescope does not limit the image quality. With its elaborate aspherical optical design it achieves an excellent image correction throughout the large illuminated field. (42mm diameter fully illuminated)
Specifications:
Focuser
2" focuser
Mount Adaptation
Dovetail plate for GP, Sphinx, many Chinese EQ mounts, ...
Aperture / focal length / f
Aperture 200mm / focal length 1800mm / focal ratio f/9
Limiting magnitude / resolution
Visual limiting magnitude 13.3 mag / theoretical resolution 0.63"
Tube Weight
6.3 kg. (13.2 lbs)
Tube Length / Diameter
486mm / 232mm (9.1 x 24.4 in)
Review of scope:
http://www.vixenoptics.com/userimage..._Sullivan.html
Inclusions for this sale:
§VC200L OTA
§Vixen illuminated finder
§Dust lid
§8” dew shield
§Genuine VC200L focal reducer 0.7
§Vixen Wide Photo Adapter 60mm - Canon EOS (Has been on a lathe to round adaptor to accept camera T ring) NOTE: you still need the Camera T Ring.
Condition: Excellent. Collimation recently performed following detection of slight off centre alignment of primary mirror. See image before collimation (
http://www.mpas.asn.au/Astro/Photos/..._2400x1600.jpg). Have original box.
Originally purchased NEW: 05/12/08
Sell Price $1,200.00
Reason for selling: certainly not for the reason that the scope is no good – just because I want to sell it. I’ve used it very infrequently.
LOCATION: BRAESIDE, VICTORIA.
