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70mm Astronomical Telescope 150X High Power Monocular Telescope Refractor Spotting Scope with 5×24 Finder Scope Tripod Moon Filter 3X Barlow Lens for Star Gazing Bird Watching Camping - Walmart.com
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Amazon.com : Astromania 1.25" 3X Short Focus Barlow Lens for Telescope Eyepiece - Superior Sharpness and Color Correction : Electronics