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The Celestron TrailSeeker Binoculars feature phase and dielectric coated BaK-4 prisms which dramatically increase light transmission through the prism system for unrivaled image quality and views
Polarizing SINGLE OR SET
but the eye relief is not affected
Machined aluminum housing: Computer assisted CNC machined aluminum housing for precise spacing and alignment of the optical elements
+/- 10 arcsecond PEC
William Optics Gold Bahtinov Mask Cover For ZenithStar 61 Telescope - CPBM-61GD 90 Degree Diagonals The Celestron TrailSeeker Binoculars featureWilliam Optics Gold Bahtinov Mask Cover For WO ZenithStar 61 Telescope William Optics Bahtinov Focusing Mask and Dust Cap Innovative Design combines Dust Cover and a Bahtinov Mask in one Fits WO ZenithStar 61 Telescope Clear Acrylic Sheet design provides 92% light transmission Gives the Brightest diffraction spikes to assist focusing This is a William Optics Gold Bahtinov Focusing Mask and Dust Cap, made from Acrylic material, which is high in light
