When the Vixen ED81S - 81mm Refractor Telescope was introduced, it set a new standard for APO Refractors. The combination of better color correction from the new Vixen Telescope ED glass and brighter images from its fast f/7.7 focal ratio will satisfy the most demanding visual astronomer or astrophotographer.

The new ED glass incorporated into the Vixen ED81S - 81mm Refractor Telescope produces clear and high contrast viewing, virtually free of false color. Vixen''s innovative design uses newly developed, environmentally friendly glass technology. The Vixen Telescope 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. Combine with a Vixen Telescope Mount for excellence in astrophotography.

• Better color correction from the new ED glass and brighter images

   

   

• Fast f/7.7 focal ratio will satisfy the most demanding visual astronomer or astro-photographer

   

   

• Produces clear and high contrast viewing, virtually free of false color

   

   

• Vixen''s new Dual Speed Focus, now standard on the ED81 Refractor

   

   

• Provides fine focus adjustments for 1/7th speed focusing

   

   

• Optical tube is very stable yet light weight

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 Included: Tube Rings;

Available Accessories: Flip Mirror Diagonal; Dovetail Plate; Red Dot Finder; Carry Handle