TW
Its not disclosed in the description but this lens does NOT support AFC (continuous focus)! So if you want this as a fast lens to shoot moving subjects in dim light, this will not work well for you. I bought it as a "street" lens and for low light group portraits at family events so probably not a problem for me, but if I had realized the lack of AFC I would have probably sprung for something better. The price is hard to beat though. Lens seems decently sharp, havent really used it for much yet. It really is compact, it sticks out about as much as the G9 grip.