VC200L

Telescope

Vixen VC200L

200mm/7.9” @ f/9

Advanced Photo / Visual

VISAC Solves Aberration

Of the common catadioptric telescopes, only the VISAC system solves spherical, coma and curvature of field.

Telescope Types Spherical Coma Curvature of Field

Classical Cassegrain

Corrected

L

L

Dall-Kirkham

Corrected

L

L

Ritchy-Chretien

Corrected

Corrected

L

Schmidt-Cassegrain

Corrected

L

L

V I S A C

Corrected Corrected Corrected

VC200L Telescope Schematic Drawing Note special 3-element corrector in focus tube of this unique catadioptric design.

Design

∙The VC200L’s catadioptric optical system is one of the most sophisticated optical designs available on the market today. With its unique VISAC (Vixen Sixth-Order Aspheric Cassegrain) primary mirror, the 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 of 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 available.

Reviews

“Owners comment that the VC200L yields flat, distortion-free images from edge to edge thanks to the corrector lens, while spherical aberration is minimized thanks to the aspheric primary mirror. The result is pinpoint stars from edge to edge, an important consideration for through-the- telescope photography.”

— Star Ware, 3rd edition, pg.146

“[C]atadioptric fans should take a close look at this scope, since it does offer a few advantages compared to your standard issue Schmidt- Cassegrain. … . The build quality is much better than most mass-produced SCTs. The Vixen has a 2" rack and pinion focuser, which eliminates the primary image shift in an SCT. Also, the scope is collimatable to an impressive degree … . Finally, there's no corrector plate to collect dew.”

—Scopereviews.com, 12/16/2003

Visit http://www.VixenAmerica.com or call us Mon. - Fri. from 9 a.m. - 5 p.m. ET: 845 469 8660 Copyright © 2002-2004 Vixen North America, 32 Elkay Dr., Chester, NY 10918. All rights reserved.

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Vixen manual VC200L Telescope, Vixen VC200L, Visac Solves Aberration, Design, Reviews

VC200L specifications

The Vixen VC200L is a highly regarded telescope known for its impressive optical performance and versatility, making it a favorite among both amateur astronomers and experienced stargazers. This 200mm (8-inch) f/10 reflector telescope is designed for a variety of observational purposes, from planetary viewing to deep-sky exploration.

One of the main features of the VC200L is its advanced optical system. The telescope utilizes a unique two-element lens arrangement, which improves image quality by reducing optical aberrations. The lens is fully multi-coated, enhancing light transmission and providing bright, high-contrast views. The focal ratio of f/10 gives users a balanced field of view and magnification capabilities, making it suitable for detailed lunar and planetary observations.

In terms of construction, the Vixen VC200L features a robust, durable aluminum body that ensures stability and longevity. It has a compact design, making it relatively portable for an 8-inch telescope. The telescope also includes a retractable dew shield, helping to minimize dew formation and improve viewing conditions.

The VC200L is compatible with a wide range of mounts, allowing users to choose between manual and computerized tracking options. This flexibility makes it an excellent choice for both casual observers and those interested in astrophotography. When paired with a suitable mount, the VC200L can capture stunning images of celestial objects.

Furthermore, the telescope comes equipped with a 2-inch focuser that allows for smooth and precise focusing of a variety of eyepieces and accessories. This versatility is a cornerstone of the telescope's appeal, accommodating different observing preferences.

Another notable characteristic of the VC200L is its ease of setup. The telescope can be quickly assembled and adjusted, which is an advantage for beginners and seasoned astronomers alike.

Overall, the Vixen VC200L is a well-engineered telescope that delivers excellent optical performance, a versatile design, and user-friendly features. Its combination of advanced technology and practical usability makes it a standout choice in the market for astronomy enthusiasts seeking quality and reliability.
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