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Luciano from China sent this spectacular image of him enjoying the incredible 203mm (8 inches) refractor binoculars (or binoscope) made by himself. These are probably the biggest refractor binoculars built so far. The light gathering power of this instrument is equivalent to a 12 inches telescope. It runs comfortably a magnification of 40. Go figure out observing Orion nebula with that ...
by Luciano on 2009-08-11
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2012-01-11 10:31:44       
Way to go on this essay, hepled a ton.
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