ED “S” APO

REFRACTORS

Vixen ED 81S, ED103S and ED115S APOs

These are Vixen's top-line APO refractors: made in Japan with new ED "eco-glass" (lead and arsenic free). These scopes have faster focal ratios and a more compact length compared to the prior ED 80S and ED 102S telescopes. In fact, the big ED 115S is shorter than the old ED 102S! The new optics are especially good at suppressing the dispersion of violet light — this avoids halos and blooming around images of bright stars. Coupled with a medium f/7.7 focal ratio, the ED “S” series provide a sharp, color-free image of high contrast for both visual and photographic applications. The big Vixen 60mm drawtube means these refractors can handle the full line of Vixen drawtube accessories. Vixen finishing touches include standard flip-mirror, carry handle, and focus tension/lock.

Works great with any Vixen equatorial mount.

Telescope Specifications with and without ED 0.67× Focal Reducer

Telescope

 

 

 

 

Model #

Accessories

Obj.

F.L. @ f/ratio

(backfocus)

OTA Dimensions

Finder, E.P. adapter, mounting

Diam.

"

with ED 0.67x

"

Length x Tube Diameter x Weight

 

 

 

ED81SWT OTA SX-Trim

 

 

 

TS-OR-2608

 

 

 

 

 

 

 

81mm

 

 

625mm @ f/7.7

 

(150mm)

 

 

 

 

 

Dot Finder

 

 

 

 

 

 

 

 

 

 

 

600mm / 23.6" x 90mm x 2.3-kg / 5.1-lb

 

 

2" holder, 1¼" flip mirror w/T-threads

 

 

 

 

3.2"

 

 

419mm @ f/5.2

 

(100mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tube rings/dovetail plate

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ED103SWT OTA SX-Trim

 

 

 

TS-OR-2609

 

 

 

 

 

 

103mm

 

 

795mm @ f/7.7

 

(150mm)

 

 

 

 

 

7x50mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

820mm / 32.3" x 115mm x 3.6-kg / 7.9-lb

 

 

2" holder, 1¼" flip mirror w/T-threads

 

 

 

 

4.1"

 

 

533mm @ f/5.2

 

(101.4mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tube rings/dovetail plate

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ED115SWT OTA SX-Trim

 

 

 

 

TS-OR-2616

 

 

 

 

 

 

115mm

 

 

890mm @ f/7.7

 

 

(150mm)

 

 

 

 

 

7x50mm

 

 

 

 

 

 

 

 

 

 

 

 

940mm / 37" x 125mm x 4.4-kg / 9.7-lb

 

 

2" holder, 1¼" flip mirror w/T-threads

 

 

 

 

4.5"

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

596mm @ f/5.2

 

 

(98.2mm)

 

 

 

 

 

tube rings/dovetail plate

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Review of Vixen ED 103S (without reducer)

The Moon was sharp with no color at all. The contrast was great with Plato and the Alpine Valley showing a wealth of detail as did Copernicus. Out of curiosity, I set the zoom at the 8mm setting and inserted it in a 3x Barlow (that's almost 300x) with no image breakdown on the Moon and I actually felt I could have gone higher.

— Johnson, Pernel. "Vixen ED103SWT Apochromatic" Astromart.com Reviews. Dec. 15, 2005

Visit http://www.VixenAmerica.com or call us Mon. - Fri. from 9 a.m. - 5 p.m. ET: 845 469 8660 Copyright © 2002-2004 Vixen North America, 32 Elkay Dr., Chester, NY 10918. All rights reserved.

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Vixen specifications ED S APO Refractors, Vixen ED 81S, ED103S and ED115S APOs, Review of Vixen ED 103S without reducer
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