Talk:Focus/@comment-30703977-20170224154653/@comment-28861372-20170309100802

no you can only have one lens on one equipement... but you can do missions with a zenurik lens on one weapon and a unairu lens on your warframe, which will get you affinity for both schools at the same time...

for your initial question : you can only activate one schools (with its passives) at any time. If you want to activate zenurik, you first need to get a zenurik lens, put it on a lvl30 equipment, then get enough affinity to unlock the first ability (and then more affinity is required to unlock the passives)