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imaginable setup for medium focal length observing. The twin 900mm f/11.2 achromatic refractors have permanently attached 45° prisms, accept the entire lineup of Vixen Lanthanum & Lanthanum Wide 1.25" eyepieces and have an enormous 56-76mm interpupillary adjustment range to work with nearly any set of eyes, including many children. For its remarkable depth perception and contrast, there is nothing that beats the ease and comfort of erect image binocular viewing. Expect high quality observing of terrestrial vistas and celestial views alike, in a package which is easily transported to your favorite dark sky location out beyond.  Take a drive to nowhere on a clear, new moon night and be amazed!  You might even see a comet. This version of the BT80M-A arrives complete with two 25mm Lanthanum eyepieces, but you'll need to supply a beefy tripod-preferrably with either a robust geared head or a professional-quality fluid video head such as those listed here as accessories.