User contributions
- 02:11, 19 October 2017 (diff | hist) . . (+25) . . m User:JeffryWrenfordsl (current)
- 18:00, 18 October 2017 (diff | hist) . . (-135) . . m User:JeffryWrenfordsl
- 11:12, 18 October 2017 (diff | hist) . . (+2,020) . . N User:JeffryWrenfordsl (Created page with "What is an achromatic lens?<br><br>An achromatic lens or Achromat is a lens that's created with the goal of limiting the consequences of lens(chromatic and spherical) aberrati...")
