Off-axis four-mirror telescope with a wide field of view and a long focal length using double integrated mirrors
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TRAVEL HD ZOOM Handheld Telescope Powerful Binoculars Metal Monocular 10-300x40 $23.52 - PicClick AU
Off-axis four-mirror telescope with a wide field of view and a long focal length using double integrated mirrors
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TRAVEL HD ZOOM Metal Monocular Powerful Binoculars Handheld Telescope 10-300x40 $22.56 - PicClick AU
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