Celestron .7x Focal Reducer for 9.25" EdgeHD Telescope
Amazon.com : Astromania 0.5X Reducer for Photography and Observing - 1.25" Filter Thread (28.5x0.75MM) on Both Sides - Reduces The Focal Length for Visual and Photographic Use : Electronics
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Amazon.com : SVBONY 0.5X Telescope Focal Reducer 1.25 inches Filter Thread 28.5x0.75mm on Both Sides Reduces The Focal Length for Telescope Eyepiece Astronomical : Electronics
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APM Telescopes. TS Optics Focal reducer 0.5x - 2 inch filter thread
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