Make a great view even better with Vixen's NEW BT81S-A Binocular Telescope. You will see spectacular views of comets and star clusters. The Magnesium Fluoride coated, air space doublet design, dramatically recuces chromatic aberration for magnificent views. This large aperture, 81mm binoculars, deliver crisp, clear images.
Vixen BT81S-A Astronomical Binoculars - Two 25mm NLV Eyepieces
The BT81S-A is very portable, at just 9 lbs in weight, so that it can easily be taken to all your observing locations. This model includes two Vixen 25mm NLV eyepieces for a spectacular view right out of the box!
Vixen BT81S-A Astronomical Binoculars Features
- Focal Ratio F/5.9
- Aperture : 81mm (3.1")
- Focal length - 480mm
- Resolving Power: 1.43 arc secconds
- Two Vixen 25mm NLV eyepieces included.
- Features: Carry Handle, Finder Bracket
- Additional Information
SKU VX-14304P1 Manufacturer Vixen Activity Astronomy Lens Aperture 81mm Magnification Variable Exit Pupil Not supplied by manufacturer Eye Relief Not supplied by manufacturer Close Focus Not supplied by manufacturer Focusing System Center Focus Knob Waterproofing None Housing Material Aluminum Optical Coatings Fully Multi-Coated BK-7 or BAK-4 BAK-4 Prism Type Porro Prism Diopter Compensation +/- 1 Interpupillary Distance Range Not supplied by manufacturer Angular Field of View Not supplied by manufacturer Linear FOV at 1000 Yards Not supplied by manufacturer Tripod Adaptable Yes Weight 9 lbs. Dimensions Not supplied by manufacturer Warranty Lifetime Warranty
- Included Items
- Vixen BT81S-A Astronomical Binoculars
- Two 25mm NLV Eyepieces
- Carry Handle
- Finder Bracket
- Questions & Answers
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