Description
You will see spectacular views of comets and star clusters
Make a great view even better with Vixen's BT81S-A Binocular Telescope. Compared with the previous model "BT80 - A", shortening the focal length shortened the total length by about 100 mm. Improve image quality by reviewing optical design. By changing the eyepiece part, the height is 40 mm lower, weight is about 900 g lighter, making it more compact.
Vixen Astronomical Binoculars BT81S-A Description
-
No immediate observation at all angles
With an eyepiece section with a 45 degree angle, you can enjoy the starry sky casually.
-
Combinations that can achieve high stability
For the BT81S - A lens barrel, we recommend using a combination of HF2 / Ladder table which adopt free stop type and SXG - HAL130 tripod of high rigidity.
Specifications
Astronomical Binoculars BT81S-A
-
Objective lens81mm / Achromatic, single coating with Mgfl
-
480mm (F5.9)Resolving power / Limiting magnitude
-
1.43 arc seconds / 11.3Light gathering power
-
134× unaided eyeSize
-
480×190×155mm4100g
-
ViewfinderArimiso type base included (Finder sold separately)
Eyepiece part
-
Size of eyepiece31.7mm
-
Eyepiece (31.7mm)Sold separately
-
PhotographyNon
-
Sun observationNon
