Talk:Focus/@comment-84.25.222.92-20151206131128/@comment-4348008-20151206143220

It's only worth putting them on everything if you have them to spare. There is no downside to having them on everything you have equiped but you only gain focus for weapons/frames that make kills. If you only have 1 or two lenses then it is best to put them on a weapon or frame that can make kills quickly or efficiently. I put a lens on my Loki Prime and my frame makes next to no kills so I've been forced to use stealth kills to get focus. Ideally I would have put it on something like my Nova or Excal had I known before hand how it worked.