I have the Panasonic 14-42 II which when coupled with my E-M10, sometimes fails to focus during certain scenarios. It's definitely not the camera since my other lens, the Olympus 25/1.8 focuses fine. I'm wondering if the Panasonic 12-32 is similar in that it fails to focus as well in particular situations when coupled with Olympus bodies. I'm not sure why my particular lens does this. Does the aperture range affect the len's ability to focus during darker or more difficult situations? Or perhaps because Panasonic lenses are not fully compatible with Olympus bodies? Maybe I just got a dud or something. Should I obtain an Olympus-branded kit lens instead of the 12-32? I'm eyeing the Panasonic lens because 14mm is not wide enough for me, and because it's stated multiple times here that the lens is incredibly sharp.