Dropdown Categories

OTA - Vixen APO 81/625

Code: 26146

The Vixen SD81S is a high-quality ED apochromat featuring special SD glass. Due to a redesign of the interior baffles, the SD series permits the use of full format cameras. This instrument provides a high light sensitivity whilst being very transportable due to its low weight.

♦ Aperture 81 mm - Focal length 625 mm - F-ratio f/7.7

♦ 2-element design featuring two ED lenses to minimize chromatical aberration

♦ Illumination of full format sensors achieved by optimized interior baffles

♦ Despite the wide aperture perfectly transportable - ideal for field trips

♦ Best mechanical and optical quality "Made in Japan"


Vixen SD81S 2-lens ED Apochromat with multi-coated optics

The Vixen SD81S features special SD lens elements (Super Extra Low Dispersion) and is the biggest of the Vixen SD series. These lenses are made under environment-friendly conditions and without the use of lead. The telescope is also equipped with optimized interior baffles, which allow the use full format cameras, and illuminates a circular field of 44mm. Despite its large aperture the SD81S is highly transportable and thereby perfectly suitable for mobile astronomy at the highest level!

When a two-lens objective with special glas is designed and constructed in Japan, you can expect excellent quality. Breathtaking sharpness and details are guaranteed in each and every night with this instrument. Not only will you notice finest color nuances on planets, but also achieve remarkable results when doing Deep-Sky – no matter if visually or photographically. Chromatical Aberration is reduced to an unnoticable minimum, light of all wavelengths of the visual spectrum align at the focal plane.

Advantages and features of the SD81S:

♦ Contrary to the ED series also suitable for full format cameras.

♦ Outstanding color correction due to ED lenses made of "Super Extra Low Dispersion" glas

♦ Uncompromising quality "Made in Japan" - mechanically and optically

♦ Environment-friendly production - without usage of lead

  • Manufacturer: Vixen
  • Weight: 4.000 Kgs
Price: $1,240
Send to friend Add to wishlist
Aperture: 81mm
Focal length: 625mm
F-ratio f/7.7: f/7.7
Illuminated circle diameter: 44mm
Objective: multi-coated ED-lenses made of SD Glas
Resolution: 1.43"
Limiting magnitude: 11.3 mag
Tube diameter: 90mm
Tube length: 585mm
Tube weight: 3.6kg
Eyepiece/camera-sided connection: 2"
Dew shield diameter: 100 mm

In the box

♦ Apo 81/625mm with handle
♦ Tube rings
♦ Dovetail
♦ XY Red Dot Finder II
♦ Flip mirror

Mini Cart

Cart is empty.