User contributions
- 11:46, 19 October 2017 (diff | hist) . . (+14) . . m User:DeonFallon4 (current)
- 21:49, 18 October 2017 (diff | hist) . . (-172) . . m User:DeonFallon4
- 10:43, 17 October 2017 (diff | hist) . . (+2,078) . . N User:DeonFallon4 (Created page with "What's an achromatic lens?<br><br>An achromatic lens or Achromat is a lens that's created for the purpose of restricting the effects of lens(chromatic and spherical) aberratio...")