Here are some more DA1770 sample photos from my fellow Chinese friends (all wide open shots in JPG from K20D):
Crop of the above one:
Crop of the above one:
Comments by those who tried it:
1. AF is silent (SDM) and fast (on par of the DA1645)
2. Pretty sharp wide open, enough for K20D's 14.6mp sensor
3. Almost no visiable CF or PF (or whatever you call it)
4. The lens extends quite long at 70mm end, longer than DA1645 at 16mm end
5. Built quality is about the same as DA1645
6. All in all a very nice walkabout and travel lens.
One more note: the lens might not work well on old non-SDM-support bodies. It won't AF on K100D or Ds, AF only works on K100D Super, K10D, K20D and K200D. That's a big minus for many potential buyers I guess.