I agree: sell the 18-200 and 50/1.8 and buy that Tamron 17-50.
The 18-200 isn't sharp enough to be my first choice. It would be fine if the primary user is a person who wants a super zoom point and shoot, but, aside from the focal length and how close it can focus, I don't care for it.
Not sharp enough?
100%crop
I don't think so...
Now if you need an excuse to buy new gear... that's another story...






