User contributions
- 17:59, 18 October 2017 (diff | hist) . . (-212) . . m User:MarlysTes7 (current)
- 01:40, 18 October 2017 (diff | hist) . . (+2,109) . . N User:MarlysTes7 (Created page with "What's an achromatic lens?<br><br>An achromatic lens or Achromat is a lens that is produced with the goal of restricting the consequences of lens(chromatic and spherical) aber...")
