This is one sharp lens! I keep getting surprised with all my classic Minolta glass, so far I have:
50mm f1.7 28mm f2.8 (although I marked the glass by accident ) 35-105mm f3.5-4.5 Macro 75-300mm f4-5.6 (sharp but to much purple fringing, not for digital really, replaced with Sigma 70-300 APO DG) 28-100mm f3.5-f5.6 (plastic but pretty good for what it is, not amazing but for plastic, pretty good)
I'm gonna be looking for more and more classic Minolta lenses. My 7D is producing some of the sharpest images I have seen with the classics, I am well chuffed!!