The focal blur does not work. It has no effect on perspective rendered display and no effect on the Render command.
Just wanted to use it as well. Aperture values most of the time have no effect at all, I can put in any number, nothing happens. Then sometimes, suddenly focal blur suddenly kicks in but the effect is not corresponding to the set aperture value at all. Doesn’t make any sense at all. WTF is wrong with this. Rhino6 is a complete mess!