Thanks Andre, from mine expirience from this lense so far, i could say it is more like fd 85 1.2ssc asph only the focal distance is more universal 57mm - it has creamier bokeh then rokkor wideopen and has very low field curvature, great sharpness wideopen and it is quite big 62mm filter size (by the way i think this is the first time when you could see this lense on FF digital body)
(i will receive in few days Oly zuiko 50 1.2 which has 49 mm filter size and i think it is the smallest 50 1.2 lens and soon i will make the new shootout with the next lenses
rokkor 58 1.2
rokkor md 50 1.2
fd canon 50 1.2L
konica ar 57 1.2
oly zuiko 50 1.2
oly zuiko 55 1.2
ef canon 50 1.2L
nikon noct-nikkor 58 1.2