Hello, newbie here. I keep buying M43 cameras and lenses, it's a kind of addiction. My latest acquisition is a secondhand Olympus E-PL2, but I'm not sure the image stabilisation is working. I can't see any stabilisation taking place on the screen unless I use a Panasonic lens. One of my other cameras has several IS modes, one of which is that stabilisation doesn't happen until the shutter is activated. Is that what's happening here? Or is there a problem with the IS? In all other respects the camera is in superb condition.