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 - Body Only
The BT81S-A is very portable, at just 9 lbs in weight, so that it can easily be taken to all your observing locations. Use with Vixen's NLV or LVW series Eyepieces for fantastic views.
Vixen BT81S-A Astronomical Binoculars Features
- Focal Ratio F/5.9
- Aperture : 81mm (3.1")
- Focal length - 480mm
- Resolving Power: 1.43 arc secconds
- Features: Carry Handle, Finder Bracket
- Additional Information
SKU VX-14304 Manufacturer Vixen Activity Astronomy Lens Aperture 81mm Magnification Variable Exit Pupil Variable by eyepieces Eye Relief Variable by eyepieces Close Focus Variable by eyepieces Focusing System Individual Eye Waterproofing None Housing Material Not supplied by manufacturer Optical Coatings Fully Multi-Coated BK-7 or BAK-4 BAK-4 Prism Type Porro Prism Interpupillary Distance Range 2.2" to 4" Angular Field of View Not supplied by manufacturer Linear FOV at 1000 Yards Not supplied by manufacturer Tripod Adaptable Yes Includes Tripod Adapter? Yes Weight 9 lbs Dimensions 18.9" x 7.4" x 6" Warranty Lifetime Warranty
- Included Items
- Vixen BT81S-A Astronomical Binoculars - Body Only
- Carry Handle
- Finder Bracket
- Questions & Answers
Product QuestionsWould a pair of Vixen Zoom eyepieces fit this particular binocular? Would they bring the image to focus at various magnifications.
Thank you so much!Question by: Arnold Shadbehr on Jul 20, 2017 10:42:00 PMYes, you can use the vixen zoom eyepieces with these bino's. The hardest part will be matching the zoom of each eyepiece which will require you to remove each one to match the appropriate zoom to maximize the viewing capabilities without suffering some errant distortion caused by two different zoom levels. But if used properly, the zoom eyepieces will offer excellent views with these binoculars.Answer by: Anthony White (Admin) on Jul 21, 2017 10:55:00 AM
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