Product Highlights
Vixen BT81S-A binoculars with large 81 mm lenses and option to change the eyepiece for different magnifications, made in Japan
- Binoculars with 80 mm lens diameter
- 31.7 mm (1.25 inch) eyepiece sockets for changeable eyepieces
- Very high light intensity thanks to the large 80 mm lenses
- Dimensions: 480 x 190 x 155 mm / weight: 4,1 kg
- Included: binoculars, carry handle, viewfinder, dew caps
The magnesium fluoride coating reduces chromatic aberration and the large aperture of 81 mm ensures a razor-sharp, contrast-rich image.
The BT-81S-A binocular telescope set weighs 4.1 kg, is portable and also exceptionally suited for nature observations.
FEATURES
- Objective lenses: 81 mm 2-lens achromat, multi-coated
- Focal length: 480 mm (f5.9)
- Resolution and limiting magnitude: 1.43 arc seconds; 11.3
- Light-gathering power: 134x
- Dimensions and weight: 480 x 190 x 155 mm; 4.1 kg
- Adapter and connections: 31.7 mm sockets
WHAT’S INCLUDED
- Binoculars 80 mm
- Carry handle
- Viewfinder
- Dew caps
Body material: | Aluminium |
---|---|
Colour: | white |
Colour of coating: | blue |
Dust protection caps: | Dust protection caps for front lens and eyepiece holder |
Focus Group [Telescopes]: | Advanced Amateurs, Visual enthusiasts |
Material: | Aluminium |
Material prisms: | Glass |
Optical design: | Achromatic Refractor |
Product Family [Telescopes]: | Refractor telescope |
Type [Binoculars]: | Giant Binoculars |
Type of coating: | Fully multi-coated |
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