Astronomical binoculars

Manufacturers

Advanced Search

Categories

Show allHide

Price

In stock

Info

Shopping

New products

Offers

Vixen HF2-BT81S-A astronomical binocular with mount and eyepieces

This package consists of HF2 Alt-Azimuth Fork Mount, BT81S-A Binocular Telescope, SXG-HAL130 aluminum tripod, Swing Bracket and a pair of SLV20mm eyepieces.

1 874,00 €

-49,00 €

1 923,00 €

Pack description

HF2-BT81S-A

This package consists of HF2 Alt-Azimuth Fork Mount, BT81S-A Binocular Telescope, SXG-HAL130 aluminum tripod, Swing Bracket and a pair of SLV20mm eyepieces.

Note:
The BT81S-A is not designed for viewing at high magnification. Use of the eyepieces with focal length shorter than 10mm is not recommendable.

Pack content

Vixen BT81S-A astronomical binocular

BT81S-A Vixen astronomical binocular (eyepieces and mount sold separately). Features 81 mm achromatic lens, 480 mm focal lenght.

Features

Objective lens

81 mm Achromatic, Single coating with Mgfl

Focal length(Focal ratio)
Resolving power /

 480mm (F5.9)

Limiting magnitude

1.43 arc seconds / 11.3

Light gathering power

134x unaided eye

Size / Weight

480mmL x 190mmW x 155mmH / 4.1kg

Interpupillary distance

58mm to 102mm

Visual back

31.7mm push-fit

Accessory

Finder bracket shoe*1

Note: Eyepieces are sold separately.*2

*1 An optional XY red dot finder or 7X50 finder scope with finder bracket is available for the BT series of Binocular Telescopes.
*2 Both the LV Zoom and NPL eyepieces are not usable on the BT Binocular Telescopes. Be sure to use Vixen eyepieces with a focal length longer than 10mm (medium to low magnification) to prevent from alignment errors at high magnification.

Swing Bracket

  • for BT80-A・ARK series

Product No.3798-04

HF2 Alt-azimuth Fork Mount

Attachable to SXG-HAL130 and SXG-AL130 tripods sold separatly.

Product No.38062-6

【Specifications】

MountAlt-azimuth fork mount,
Vertical and horizontal friction controls
Maximum loading weight13 kg / 28.6 ld
Weight3.4 kg (Without tripod)