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Craftsmen made intricate engravings
January 6th, 2010 by admin
This higher magnification lens is useful for examining extremely fine-scale entomological or botanical detail. High quality lens providing excellent distortion-free magnification. The two outermost components and one inner component are movable relative to the remaining lenses in lens 2. Assyrian craftsmen made intricate engravings, and could have magnifier lamp used such a lens in their work. David Brewster proposed that these and it may have been used as a magnifying glass, or as a burning-glass to start fires by concentrating sunlight. The oldest lens artifact is the Nimrud lens, which is over three thousand years old, dating back to ancient Assyria.