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Vc200L - Visac

Vc200L - Visac

The Vixen Vc200L, Known As Visac (Vixen 6Th Order Aspherical-Cassegrain) Is A Catadioptric Optical Design With A Unique, One Of The Most Sophisticated Currently Available.
It Has A Primary Mirror With Aspheric Surface Of The Sixth Order, A Mirror And A Convex Secondary Triplet Of Corrective Lenses.

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Vc200L - Visac

Vixen

VX-2632

New product

The Vixen Vc200L, Known As Visac (Vixen 6Th Order Aspherical-Cassegrain) Is A Catadioptric Optical Design With A Unique, One Of The Most Sophisticated Currently Available.
It Has A Primary Mirror With Aspheric Surface Of The Sixth Order, A Mirror And A Convex Secondary Triplet Of Corrective Lenses.

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1 822,00 €

Ordered upon request

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The Vixen VC200L , known as VISAC (Vixen 6th order aspherical-Cassegrain) is a catadioptric optical design with a unique, one of the most sophisticated currently available.
It has a primary mirror with aspheric surface of the sixth order, a mirror and a convex secondary triplet of corrective lenses.

Thanks to this optical scheme all aberrations (spherical , coma, curvature of field and chromatic) are correct to provide 15 micron star within a circle image of 42mm . Also:

  • Open the optical tube allows a fast temperature adaptation of optical
  • the absence of corrector plate fastidiso prevents fogging in the presence of atmospheric moisture
  • is done by focusing a robust and accurate focuser outside this prevents movement of the annoying ' while focusing a picture (image shift) or worse, moved the photo to tilt the primary mirror (mirror flop)
  • Support of the secondary is particularly robust to prevent bending of the mirror during long photographic exposures
  • The use of lightweight materials has allowed the Vixen to create a refined intubation with very low weights, so that the instrument can be used profitably on small to medium frames.
  • a handle allows a comfortable grip for fast installation of the instrument on the frame.

    These features make the Visac the best existing tool for astrophotography this price range.

    The use of REDUCER FOCAL (optional cod.3868) brings the focal instrument to 1278mm (F / 6.4), making it possible to increase the field of view and significantly reduce the exposure time in long-exposure.

    FEATURES
    Optical system VIXEN 6TH-ORDER ASPHERICAL CASSEGRAIN
    Open 200mm
    Focal length 1800mm
    Focal Ratio f 9
    Magnitude limit 13.3
    Power separator 12:58 ""
    Tube diameter 232mm
    Tube length 620mm
    weight < td> 6kg
    diameter focuser 60mm < tr align = "" left ""> Standard
    • Focuser eyepiece with 50.8 and 31.8 thread from 42mm to 60mm and T2 (NOTE: focus eyepiece 2 "" is necessary to use a diagonal or tube prolongation optional accessories)
    • Flip mirror with mirror high optical quality
    • Seeker 7X50, with 7 ° field
    • Base dovetail
    • handle "

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