When The ED81S Refractor was introduced, it set a new standard for APO Refractors. The combination of better color correction from the new ED glass and brighter images from its fast f/7.7 focal ratio will satisfy the most demanding visual astronomer or astro-photographer. The new ED glass produces clear and high contrast viewing, virtually free of false color. Vixen's innovative design uses newly developed, environmentally friendly glass technology. The optical tube is very stable yet light weight. Vixen's new Dual Speed Focus, now standard on the ED81 Refractor, provides fine focus adjustments for 1/7th speed focusing. |
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| Purchase Your ED81S Refractor Telescope at these VIP Dealers: Adorama • Camera Bug • Canadian Telescope • Hands on Optics • KW Telescope • Opt Telescopes • Woodland Hills Telescope |
Specifications: |
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Optical Design |
ED Apochromatic Refractor |
Aperture |
81mm |
Focal Length |
625mm |
Focal Ratio |
f/7.7 |
Coating |
Multi Coating |
Resolving Power |
1.43 arc sec |
Limiting Magnitude |
11.3 |
Light Gathering Power |
134x |
Finder Scope |
Optional |
Focuser |
Dual Speed |
Adapter Thread |
60mm/50.8mm |
Astrophotography |
Prime Focus, Eyepiece Projection & Afocal Imaging |
Visual Back |
Compression Ring |
Optical Tube Length |
23” (585mm) |
Optical Tube Diameter |
3.5” (90mm) |
Outside Dew Shield Diameter |
100mm |
Optical Tube Weight |
5.1lb |
Accessories |
Tube Rings; |
Available Accessories |
Flip Mirror Diagonal; Dovetail Plate; Red Dot Finder; Carry Handle |
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ED81S Accessories ...Details Here
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Focal Reducer
$249
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Flip Mirror
$99.95
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Universal Dove Tail Plate
$18.95
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Red Dot Finder
$ 79.95
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Purchase Your ED81S at these VIP Dealers:
Adorama • Camera Bug • Canadian Telescope • Hands on Optics • KW Telescope • Opt Telescopes • Woodland Hills Telescope
Return to Vixen Telescopes>>> |
