Panasonic 12-32mm is good enough

Didn't pay that much for it. Probably does great outside. Could try using HDR inside, but that's not good for moving subjects.

Nice, AfterShot Pro can align photos, so you can try doing it without a tripod. digiKam can do it too.

Funny, somebody on a forum says, they don't own an Olympus body, because Olympus doesn't make a 15mm lens. You can use Panasonic lenses on Olympus, I do it. Unless the Panasonic isn't micro four thirds, in that case, they are in the wrong forum.

HDR is the lazy person's way of getting the exposure right.