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Amazon.com : Barlow Lens 2X, Bysameyee 1.25 Inch Fully Multi-Coated Metal Barlow Lens with M42 Thread Camera Connect Interface for Telescope Eyepiece : Electronics
Amazon.com : SVBONY 2X Barlow Lens 1.25 inch Double The Magnification Multi Coated Broadband Green Film Telescope Accessory with M42 Thread for Standard Telescope Eyepiece : Electronics
Amazon.com: AmScope SM05 0.5X Barlow Lens For SM Series Stereo Microscopes (48mm) : Electronics
Amazon.com : SVBONY Telescope Barlow Lenses, 1.25 Inch Telescope Accessory, Fully Metal Multi Coated Broadband Green Film Barlow Lens 5X for Telescope Astronomy Eyepiece : Electronics
Amazon.com : Astromania 2" ED 2X Dual Power Telescope Barlow Lens for Telescopes : Electronics
Amazon.com : SVBONY 2X Barlow Lens with M42 Thread and Moon Filter 1.25 inch 25 Percent Transmission Neutral Density Filter ND4 Neutral Density Filter : Electronics
Amazon.com : SVBONY 1.25 inches 3X Barlow Lens Telescope Accessory for Telescope Eyepiece Fully Blackened Metal Used for Astronomical Photography : Electronics
Amazon.com : 1.25 Inch Barlow Lens,5X Magnification Aluminum Alloy Multi-Coated Optical Barlow Lens with M42 x 0.75mm Thread,for 31.7mm Astronomical Telescope Eyepiece : Electronics
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Amazon.com : SVBONY Telescope Barlow Lenses, 1.25 Inch Telescope Accessory, Fully Metal Multi Coated Broadband Green Film Barlow Lens 5X for Telescope Astronomy Eyepiece : Electronics