Hi. I've been trying to decide between the Olympus 45mm and Panasonic 42.5mm f/1.7 lately. Before trying them out I was leaning towards the Panasonic because of its shorter minimum focus distance. However, when trying both of them out at the store, I had a couple of issues with the Panasonic that make it less pleasant to use than the Olympus. First, it makes some noise (a little louder than the focusing mechanism) whenever I move he camera around/change the framing. Is this the image stabilizer working? Seems weird because in my experience (with Olympus IBIS and Canon lens I.S.) the stabilizer usually makes a very steady quiet hum, not occasional bursts of mechanical noises. But if it really is the stabilizer working, I am unable to turn it off with the "Lens I.S." option in the Olympus menus. Isn't it supposed to work for Panasonic lenses? Or is it just for the single Olympus lens that has OIS (the 300mm f4), which has an external I.S. switch on it anyway? Second, when autofocusing, the viewfinder seems to go into a lower-resolution mode for the half-second or so that it takes to lock focus (the image looks pixelated), then goes back to normal when focus has been achieved. This is quite distracting when taking photos. Is it normal? Does it apply to all Panasonic lenses when used on Olympus bodies? For the record, I'm using an E-M5 Mark II with the latest firmware (version 2.2).