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Posts Tagged 'vixen'

Special offer: Vixen binocular telescope BT-81S-A complete package!

October 9 2019, Stefan Taube

Binoculars are often underrated as instruments for astronomy. Yet the view of the night sky through large-aperture binoculars is a unique experience!

Binocular viewing supports our natural stereoscopic vision. It allows especially relaxed observing and offers a 3D effect that can only be achieved with a telescope by using a binocular viewer accessory.

Vixen BT 81S

Vixen BT-81S-A binocular telescope set

Compared to telescopes, binoculars have a larger field of view at lower levels of magnification. Therefore they are especially suited to observing star fields, open star clusters, dark nebulae and comets.

For many years Vixen, the Japanese manufacturer, has been offering an interesting range of astronomical binoculars with their BT series. Right now we are offering you the BT-81S-A as a complete package for a special price: you get the binoculars including a tripod, mount and eyepiece now for just EUR 1,699. You save EUR 200 compared to the manufacturer’s recommended price!

The BT-81S-A has two achromatic lenses with magnesium fluoride coatings. The colour-corrected fast lenses, with a focal ratio of f/6, combined with the special fork mount, allow an expansive visual stroll across the night sky which is truly addictive!

With an 81mm aperture, the BT-81S-A is among the smaller large-aperture binoculars. But in return it is easily portable, weighing 4 kilograms and being 480 millimetres long.

You can find more information and ordering options here in the Astroshop.

The Apochromat VSD 100 by Vixen is now on special offer!

November 10 2017, Stefan Taube

We offer the apochromatic refractor VSD 100 by Vixen at the special prices of €5,399. You save € 600 compared with the recommended retail price! This offer ends on the 31st December 2017. Order now!

Der Astrograph VSD 100 von Vixen

The Apochromat VSD 100 is a dream for astrophotographers: With an aperture ratio of f/3.8 it is very fast. That means you only need a relatively short exposure time. That not only means that it can capture more detail in dim objects during your observation night, but that you can do without guiding and get by with a lighter mount. With the Reducer for the VSD 100 you can even obtain an aperture ratio of f/3!

The optical system of the VSD 100 comprising five lenses ensures an even field of view and reduces chromatic aberrations. That provides a sharp image right up to the edge – even with a relatively wide aperture of 100 mm!

This example shot taken on 09.01.2016 shows the comet C/2013 US10 (Catalina).

Catalina-VIXEN-VSD100

To achieve a field of view that is sufficiently large, the Reducer is mounted on the VSD 100. 25 shots with an exposure of 30 seconds each were taken with a DSLR camera and added to this overall image. Thanks to the short exposure time, neither autoguiding nor an especially precise alignment were necessary.

15.10.2019
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