Anyone using an 85mm 1.8 with a 60D ?

I have the 85 1.8 and its really good. Mine is sharp but sharper from f2.
But with high contrast like direct sunlight.. at around 1.8 to 2.8 i think.. YOu get red/magenta around higlights..

I also have 100mm f2.8 and is also very sharp. On that one i still have not seen highlights get the red magenta effect as much as my 85mm 1.8.