What is the purpose of the OSA buttons beyond 5? Sure it makes quite a difference when using MBLUR but without that, there seems to be no difference between 5 and 16.
In fact the antialiasing in 16 is still not perfect infact its not even good. Sure use camera jitter but that would make the renders 5 times as long.
And then there are the black line artifacts.
How does one achieve better results with antialiasing?