Hello everyone, I just got an Olympus 75 mm yesterday. I just had time to make some tests (to see if I keep the lens or not) and I'm a bit disappointed by the sharpness I get at f/1.8. The lens has a great reputation for being sharp wide open. I would not call my lens "sharp" at f/1.8 (I would call it "usable"). It's sharp at f/2.8, and very sharp at f/4.0, but it's not impressive in any way at f/1.8. Here are some of my test shots, center crops at the point of focus. All shots on tripod, no IS, MF with focus peaking and zoom. (I tried AF too, with the same results). For all examples, f/1.8 is first, f/2.8 second, f/4 last. you can click on images to compare them in different tabs. * test 1 * * test 2 * * test 3 * I wonder: did I make something wrong? Am I pixel peeping? or is my 75 sample not as good as it should be?