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00:49, 20 October 2017 (diff | hist) . . (-115)‎ . . m User:Floy78Q000 ‎ (current)
00:50, 19 October 2017 (diff | hist) . . (+2,012)‎ . . N User:Floy78Q000 ‎ (Created page with "What's an achromatic lens?<br><br>An achromatic lens or Achromat is a lens that is created for the purpose of restricting the effects of lens(chromatic and spherical) aberrati...")

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