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Vixen VC200-LDG 200mm Diameter Catadioptric Telescope Optical Tube (White), with 7x50 Finder and Flip Mirror.
Mfr. Part: 2632 SKU: VXVC200LDG
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Item Includes
7x50 finder, 2" Eyepiece Adapter, Flip Mirror Diagonal, Dovetail Tube Plate and new Focus Knobs
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Description
The VC200L's catadioptric optical system is one of the most sophisticated optical designs available on the market today and has recently received some manufacturing upgrades. The New VC200L has a lighter-weight optical tube with improved anti reflection coatings, a metal carrying handle and now comes standard with a 7x50 finderscope. If you are looking for a photographic catadioptric, this is an excellent choice.
With its unique VISAC (Vixen Sixth-Order Aspheric Cassegrain) primary mirror, the telescope gives a sharp image that is free of chromatic aberration and is flat and sharp to the edge of 35mm film.
The VISAC optical system is composed of a concave primary mirror, a convex secondary mirror and a three element field corrector. Especially noteworthy is its sharpness and flatness at the edge, which far exceeds that of Schmidt-Cassegrain systems of the same aperture. It provides a pinpoint star image less than 15 microns, even at the edge of its 42mm image circle.
The open tube design eliminates the dew problem that is common with conventional Schmidt-Cassegrain systems and its size makes it very easy to handle. The VC200L is well suited for observation and astrophotography of the moon, planets, star clusters, nebulae, and comets. The rack-and-pinion focusing mount accepts optional 2 eyepieces and accessories, and an f/6.4 reducer for photographic use is also available.
The VC200LDG comes supplied with a 7x50 mm finder , a flip mirror and 232mm tube rings, as well as being compatible with the new Sphinx mount. The 7x50 achromatic finder has a field of view of 6.8" and a Kellner type eyepiece.
The optical path can be switched easily with the changeover knob of the Flip Mirror system, allowing swift transitions from star watching to astronomical photography. There is no change of the focus point even when switching the optical path. A T-ring attachment thread is provided for direct focus photography.
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Specifications
| Optical tube | 200mm Aspherical Mirror, Multi Coated, Catadioptric Telescope |
| Focal Length / F# | 1800mm F/9 |
| Finderscope | 7 x 50 Finder
Photo /Visual Back:
60mm, 42mm for T ring
50.8mmm, 31.7mm witrh Flip Mirror |
| Mount | Not included |
| Eyepiece | Not included |
| Star Diagonal | Optional |
| Highest Useful Magnification | 400x |
| Limiting Stellar Magnitude | 13.3 |
| Resolution: Rayleigh | Resolving power : 0.63" |
| Light Gathering Power | 816x |
| Field of View: standard eyepiece | with LV20mm : 33' - 90x |
| Optical Coatings | Aspherical Mirror, Multi-coated |
| Optical Tube Length | Tube diameter 232mm
Length 620mm |
| Optical Tube Weight | 13.23 lbs. / 6 kg. |
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