LensTip.com

Cons: - Not a small lens but not an enormous one - Why plastic filter thread ? Sounds like a lack of taste on such a beautiful barrel - You must be close to your subject to play with bokeh - Expensive (but may be worth it, read full review)

Pros: - Great overall build quality, weather sealed - Fast focusing - Incredible sharpness from wide open - Close focusing - Especially smooth and creamy bokeh

Summary: Best bright wide angle lens I ever shot with. It\'s expensive but I don\'t regret it. It\'s much better than even a good sample of the 17mm f/1,8. It\'s not a small lens but not as huge as I thought. It\'s confortable if your camera has a substantial grip, feels good on my E-M1. Build quality is overall excellent. I don\'t think it\'s heavy for such a bright lens. Image quality is simply great. The lens is tack sharp across 95% of the frame at f/1,2 and by f/1,8, it\'s sharper than the f/1,8 version at it\'s best aperture. Autofocus is fast and reliable. Finally I find the feather bokeh surprisingly effective. f/1,2 and close focus gives you incredibly smooth and creamy blur. Bokeh becomes solid when stopping down so just don\'t hesitate to use the lens wide open, it\'s where it shines. I\'m in love, rendering is nicer than my previous 23mm f/1,4 on Fuji. Transition between in focus and out of focus areas is nice and subtile, never had this kind of smoothness from a wide angle. Just be aware physics stay physics, you will have to be quite close to your subject to play with depth of field... Or try the 25 or 45mm f/1,2 !