SVBONY 1.25" 0.5X Focal Reducer M28.5*0.6 Barlow Lens for Astronomy Monocular Binoculars Telescope Eyepiece Photography&Observin - TinyDeal
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Buy SVBONY SV193 Focal Reducer 2 Inch 0.8X Field Flattener Telescope Accessory for SV503 80mm F7 ED Telescope Online in Turkey. B094QSGPPN
Vixen Telescope Focal Reducer for F7.7 ED | Vixen
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Vixen Optics Focal Reducer for FL55SS Telescope 37251 B&H Photo
Sky Watcher .85x Reducer Lens for ProED / Evostar 80 Apo Telescope # S20200
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What can a field flattener or focal reducer do for my telescope? - BBC Sky at Night Magazine
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Was ist eigentlich ... ein Reducer? - Abenteuer Astronomie
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Sharpstar 2.5" 0.8x Reducer and Flattener for FULL FRAME Cameras for Sharpstar 76EDPH Telescope - M48 Camera Connection
