It's funny, I sold the Oly 12mm to fund the GXR with 28 purchase. I liked the lens, but sometimes it felt a bit wide for what I was shooting (maybe because I am a pretty new photographer?). I preferred my wife's Panasonic 14mm pancake FoV. Also, the 12mm made the E-P3 somewhat less pocketable due to the lens' length. I really just kept going back to the 12mm because I knew it was probably a bit sharper in the corners and I did kind of dig the snap focus ring.speaking of the E-P3 their 12mm F2 is sort what made think what else is coming, and I only have two daughters to keep handing down equipment to.