[davidmanze]

Just a quick one ..... Christopher Frost has reviewed this lens ...... it's pretty much perfect not needing any lens corrections ... just a tickle of flare in direct light .... bokeh balls are nearly perfect to the corners with no sub structure ...... 

just a case whether you have a need for such a lens for mainly portraiture  ...... at around 2.5 K a need will be required !!

see here:

https://www.youtube.com/watch?v=OfMHH6p_Cds