well, it is a very special lens. And it should be used with a tripod. Don`t laugh....but the field of depth at 1.2 is soooooo small.....Just a little move by model or photographer...and your point of focus has gone...the field of depth is small an the resolution are not convincing for the price, a highly over rated lens who may impress
Sorry for my bad old school english
on some people
Test charts don't impress everyone.