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21:24, 18 October 2017 (diff | hist) . . (-93)‎ . . m User:LavadaKay91921 ‎ (current)
04:16, 18 October 2017 (diff | hist) . . (+2,009)‎ . . N User:LavadaKay91921 ‎ (Created page with "What is an achromatic lens?<br><br>An achromatic lens or Achromat is a lens that's produced with the goal of restricting the effects of lens(chromatic and spherical) aberratio...")

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