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Vixen - SD81S SD Apochromatic refractor OTAadd this item to shopping cartThis product is highly recommended
Code: 26146
Supreme Vixen SD81mm x 625mm f/7.7 Apochromatic telescope optical tube with accessories


Vixen SD apochromatic refractors feature “Super extra-low Dispersion” SD optical glass in its objective lens. The optical design with SD glass suppresses residual chromatic aberration far under the threshold of visibility and produces outstanding sharp images with high contrast for both visual and photographic applications.

With high-performance Super ED Glass made of leading-edge FPL53 glass, it produces extremely clear and sharp image by extraordinary elimination of colour aberrations.
The SD glass is designed to gather all g-ray (purple), C-ray (red), F-ray (blue), d-ray (yellow), and e- ray (green) around 0 value, reducing chromatic aberration over all colours.

Used in combination with new optional SD Reducer HD Kit or SD Flattener HD Kit, it allows 44mm image circle with full-format (D)SLR cameras.

SD Apochromatic objective : D=81mm F=625mm (f7.7), multicoated optics
Resolving power : 1.43 arc seconds
Limiting magnitude : 11.3
Light gathering power : 134x unaided eye
Finder scope : XY Red dot finder II (1x aiming device)
Adapter thread : 60mm and 42mm for T-ring
Visual back : 50.8mm and 31.7mm push fit with the supplied Flip mirror diagonal
Accessories : Tube rings, Dovetail tube plate, Flip mirror diagonal, Carry handle
Photography applicable to : Prime focus and Eyepiece projection
Size and weight : 90mm dia. x 585mm long and 3.6 kg / 7.92 lb

Another feature optimising use in astro-photography is the newly baffles and positioning within the optical tube increasing incoming light near the edge of field of view greatly. This new design coupled with new (optional) SD Flattener HD, star images are perfectly corrected in the photographic field of view of even with a 35mm full-frame image sensor. A new (optional) reducer HD is designed to be used in combination with the new SD Flattener HD produces bright and wide field flat field images.

Shown with eyepieces (**Sold separately**)

**Note delivery is dependent on current stock but is typically 2-4 weeks from time of ordering**




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Price: $1,499.00Recommended Options
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