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but the eye relief is not affected
Polarizing SINGLE OR SET
+/- 10 arcsecond PEC
GEM45 GPS module
William Optics Gold Bahtinov Mask Cover For ZenithStar 61 Telescope - CPBM-61GD 90 Degree Diagonals but the eye relief isWilliam 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
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