My usage will pretty much be landscape stype photos as for general shotting I use my Tammy 17-50 which I consider a great lens. So I reckon the distortion will should not be a big issue (like you say), hmm but I had better watch tht shadow as I have managed to get it my shadpw in frame with my Tammy at 17mm. I did see a shot once were the person on the left of frame actually had one foot looking about twice the size of the other , so something to consider.