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Vixen ED81S with Dual Speed Focuser
List Price: $1,400.00
Our Price:
$
999.00
Savings: $401.00
Quantity in Stock:1
Availability::
Usually Ships in 24 Hours
Product Code:
5864
Qty:
Description
Technical Specs
When The ED81S Refractor was introduced, it set a new standard for APO Refractors. The combination of better color correction from the new SD glass and brighter images from its fast f/7.7 focal ratio will satisfy the most demanding visual astronomer or astro-photographer. The new Super Low Dispersion (SD) glass produces clear and high contrast viewing, virtually free of false color. Vixen's innovative design uses newly developed, environmentally friendly glass technology. SD lenses focus all visible rays of light at nearly the very same position. This ensures that the chromatic aberration is highly corrected over a wide spectrum of light. Of special note is stray light, which affects image contrast, is well suppressed. 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. The Japanese made ED81S is covered by Vixen's 5 year warranty. Instruction Manual
here
.
Optical Design: ED Apochromatic Refractor
Aperture:81mm
Focal Lengt: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
Back Focus (from rear edge of focuser body);149.0mm
Back Focus with Reducer (from rear edge of reducer: 63.5mm
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 Included
Accessories: Tube Rings; Dual Speed Focuser
Optional Accessories: Flip Mirror Diagonal; Dovetail Plate; Red Dot Finder; Carry Handle
Accessories
Vixen Sphinx SXD2 Mount with PFL Polar Scope
Item #5449 - Vixen Dielectric Coated Diagonal Mirror 50.8mm
Sphinx SX2 Mount with Tripod
Item #8616 - Vixen 7x50 Illuminated Finder Scope
Our Price:
$2,599.00
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$149.00
Our Price:
$1,599.00
Our Price:
$189.00
Item #3666 - Vixen Focal Reducer ED81S, ED103S, & ED115S
Vixen Advanced Polaris Mount with Tripod
Our Price:
$179.00
Our Price:
$899.00
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