Originally posted by jpyykonen I agree with this. I'm rather new with 18-135WR yet as I have had it about one week and I have shot around 300 shots with it but the center sharpness is exceptional for a zoom with this big zoom range IMO. About 18~70mm it may well rival primes in center sharpness and contrast at ~F5.6. Not many zooms have caused "wow" effect but this did with it's center sharpness.
I was "scared off" buying this lens before because of bad ratings in reviews. Now finally I have decided not to give too much weight on web reviews. Best is to try yourself and see if it suits you. I think this has become another underrated lens because of bad early reviews. And I'm also starting to believe there is some "Pentax bias" around because of some bad reviews
I was also skeptical because of early reviews of the DA18-135WR and the lens blew me away. After using the lens awhile I realized that I was not using my DFA100WR much because the 18-135 did such a good job, the 100 became somewhat redundant. I really didn't do much macro work and used it primarily as a telephoto, . So I sold it to build funds for a DA*300, not there yet, but that would be my two lens kit.