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16:48, 19 October 2017 (diff | hist) . . (-211)‎ . . m User:TrevorWhetsel0 ‎ (current)
22:12, 18 October 2017 (diff | hist) . . (+2,098)‎ . . N User:TrevorWhetsel0 ‎ (Created page with "What is an achromatic lens?<br><br>An achromatic lens or Achromat is a lens that is created with the goal of limiting the consequences of lens(chromatic and spherical) aberrat...")

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