Home > Astronomical Telescopes > Vixen
Model: 2632Brand: Vixen
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The VC200L is a 200mm (8 inch) f9.0 well-corrected, specialised telescope which has been engineered to meet the demands of the astro imager.
Vixen's unique catadioptric design features a high precision sixth order aspherical primary mirror, a convex secondary mirror and triplet corrector lens placed between the secondary mirror and focusser. In combination, these optical elements form Vixen’s VISAC (Vixen Sixth-Order Aspherical Cassegrain) design.
The primary mirror is held by a retaining ring, instead of hooks to decrease flare and enhance contrast.
The VISAC design provides high-definition star images to the edge of a wide viewing field and offers excellent performance for astrophotography. Even at the edge of 35mm film format CCD chips, stars are sharp and typically better than the resolution of high quality CCD imagers. This means that the telescope does not limit image quality.
Typically exposure times of around 10 minutes are required when using this scope for deep sky imaging. An optional f6.4 focal reducer allows for much shorter exposure times.
The tube is supplied with a dovetail mounting rail. The rail is covered with a stainless steel plate on one side to prevent marking from mounting set screw or compression plates.
The integrated carry handle makes this lightweight tube easy to transport to remote imaging sites.
Aluminium Vacuum Evaporation SystemAluminium Vacuum Evaporation SystemVixen has created a unique aluminium vacuum evaporation system to produce extremely precise mirror surfaces. More accurate than the error-prone process of grinding material to form a mirror surface, Vixen's revolutionary system works by controlled layering of aluminium film. The primary mirrors in the unique sixth-order aspheric Cassegrain fitted to the VC200L as well as the 200mm Newtonian R200SS are produced using this aluminium vacuum evaporation system.
Optical Design: VISAC Aspherical Mirror ReflectorAperture: 200mmFocal Length: 1800mmFocal Ratio: f/9.0Back Focus (from rear edge of focuser body): 149.0mmBack Focus with Reducer (from rear edge of reducer): 63.5mmCoating: Multi CoatedResolving Power: ;.58 arc secTheoretical Resolution: 0.63"Limiting Magnitude: 13.3Light Gathering Power: 816xAdaptor Thread: 60mm/50.8mmAstrophotography: Prime Focus, Eyepiece Projection & Afocal ImagingVisual Back: Compression Ring,Tube Length: 23.6" (600mm)Optical Tube Diameter: 9.1" (232mm)Optical Tube Weight: 13.2 lbAccessories; Dove Tail Mounting Rail; Carry Handle; Flip Mirror Diagonal;
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