The first 85mm image quality comparison below shows a 100% crop from the absolute top left corner of the frame. The plane of sharp focus should run through the right-most of the larger white tree branches. There was some wind on this day (so the trees are not completely cooperating) and the lenses frame slightly differently, but I think you will see the image quality differences.
The following comparison shows a 100% crop from the lower-center of the frame. The plane of sharp focus should run through the house.
The following comparison shows a 100% crop from the mid/lower-right portion of the frame. The plane of sharp focus should run approximately through pine cone.
Back to the Sigma 85mm f/1.4 EX DG HSM Lens Review.