Talk:Focus Lens/@comment-24.4.66.97-20180205144340/@comment-75.118.203.186-20180510112326

No, you'd get 2.5% of exp converted to focus. Having more than 2 eidolon lenses on of the same school is inefficient as it just gives the same total amount, regardless. It's not an additional 2.5% exp converted to focus, the formula, assuming you're using 3 eidolon lenses is:

(2.5% + 2.5% + 2.5%) / 3 = 2.5%

the 3 signifying how many lenses you have equipped. If you had a lense of the same school equipped but of a normal rank instead of eidolon, you'd get:

(2.5% + 1.25% + 2.5%) / 3 = 2.08% focus conversion to exp instead

Using more lenses only helps if you want focus in multiple schools at the same time, but not so much if you only want focus for a specific school. So just stick with 2 max if doing focus-farming stuff.