We reported earlier this year on the release of the Founder Optics Bino-One 72 and the company has also released the Founder Optics Bino-One 80, a spotting scope with a divergent binoviewer with two 80mm eyepieces designed for 3D views.
The innovative, built-in binocular viewer includes two 12.5 mm eyepieces that provide 40X magnification and long eye relief (20 mm). And the design provides the opportunity to simply switch to different eyepieces for a change in magnification. The Founder Optics Bino-One 80 offers a large 80mm objective lens with 500mm focal length (f/6.25) for bright views during the day and nice light-gathering at night. The ED (extra-low dispersion) lens is made from Ohara FPL-53 glass, resulting in sharp images with virtually zero distortion and very low chromatic aberration.
The lenses are fully multi-coated and install easily into the binoviewer with twist lock collars. You can set the distance between the two eyepieces by sliding the interpupillary distance scale up or down until you find the spacing that is most comfortable. The scale runs from 58 mm to 74 mm and is conveniently located between the eyepieces on the binoviewer body.
The diopter focusing ring, with its + and – markings, makes adjustments easy until the image is sharp. The green collar that connects the binoviewer to the spotting scope can be loosened, allowing the ability to rotate the eyepieces for the most comfortable viewing. This is especially convenient when doing astronomy and the scope is pointing up near the zenith.
The Founder Optics Bino-One 80 can be attached to either a tripod (via a 1/4-20 threaded hole) or to an alt-azimuth or equatorial mount via the included Vixen-Style Dovetail plate. The Bino-One includes an attached lens cap and comes in its own hard carry case for protection for storage or travel. Custom cut foam snuggles the binoviewer and eyepieces attached and there is room for more eyepieces.
The Founder Optics Bino-One 80 specifications include:
– Aperture: 80mm
– Focal Length: 500mm
– Focal Ratio: f/6
– Diagonal: Patented built-in Binoviewer
– Optics: Fully multi-coated ED
– Field of View: 2.0 degrees
– Field of View at 1000 Yards: 103 Feet
– Near Focus: 26 Feet (8 Meters)
– Tripod Socket: Standard 1/4″-20
– Dimensions: Length 371mm x Width 107mm x Height 249mm
– Eyepieces Included: Two Alien 12.5 mm Long Eye Relief 1.25″
– Magnification with Included Eyepieces: 40X
– Weight: 2.7kg (5.9lbs)
You can learn more about the Founder Optics Bino-One 72 here.
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