Originally posted by robgo2 The DA* 16-50 has been my workhorse lens for the past two years, and I am highly satisfied with its optical performance, which I would rate a notch above that of the DA 17-70, which I previously owned. I also own the 31 Limited and the 77 Limited, which are optically superior, but not by as much as one would think.
I've had the same lenses and the same experience, except that I'd say it a bit differently: The DA*16-50 is a definite downgrade from FA Ltds, but it's still good enough to be used in their place when you need a zoom. The DA 17-70, or the Tamron or Sigmas are not, in my experience.
While PP is important, and I admittedly would like to be better at it, two thoughts:
1) Sometimes PP is not appropriate. I shot our town's holiday parade last December - about 2000 shots (which just filled my 16GB SDHC card, BTW) on my K-5. I used one lens the whole time - the DA*50-135. I decided before the Parade began that I only needed JPEGs, so I took no RAW files. Then I submitted about 200 of the better ones. It was my first parade, and I learned a lot that I could do better next time, but I think I still represented myself and the parade well by using only the better shots. Mine are mostly at the beginning in each category, with Pentax file names on them. The other shooter (on a Nikon) was probably better than me, but he submitted everything (which doesn't look good) because he was spending even less time on this unpaid assignment.
2010 Parade
Sometimes PP doesn't make sense, so you simply need a good lens. There are a few shots in there I really like, and the lens is part of the reason. The DA*16-50 is a worthy companion to the DA*50-135. Just put those two lenses on any Pentax DSLR body and you've got a nice little kit.
2) You can't make something out of nothing. As hard as I try, I can't make a photo from a lesser lens look like the one from a better lens. I may get acceptable results, but it's never the same - and usually isn't as good.