Originally posted by normhead Definitely my DA 18-135, sharper than or approximately equal to any Pentax lens available from 22-45- plus the equivalent of 200mm reach on FF in it's long end, and still centre sharp. There isn't another lens like it as far as I can tell. Sharper than any other super zoom, and prime quality at 24mm in it's short end. I'd like to pick up a nice compact 200mm prime to go with it. For zoom the CA is well controlled on it compared to many other zooms, but no where near prime quality.
It's not only the one I'd own, it's the one I leave the house with when I only want one lens. I love the Tamron 17-50, but you have to have the Sigma 70 or Tamron 90 to leave the house with it. It's just not long enough to be the one lens.
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 have also 16-50/2.8,17-70/4 and Tamron 17-50/2.8 with similar zoom range. Corners are worse,especially long end, but this may very well be my "one lens" because of it's versatility. This and A* 300/4 makes very versatile and light weight two lens walkabout kit.
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