DxO measured a whack of glass for sharpness and stuff on the K-3 and also compared to how they look on the K-5.
Are you sitting down? Best lens for both prime and zoom category is a Sigma ... http://www.dxomark.com/Reviews/Best-lenses-for-the-24-MPix-Pentax-K-3-Recommended-primes-and-zooms No big surprise: the good lenses all measure as sharper on the K-3. If you have a DA* 55/1.4 on your K-3: suhweet! (As you will have discovered for yourself by now anyway.) They haven't yet measured the DA* 50-135/2.8, the DA* 60-250/4, or any FA Ltd's, so that may change the chart. -- -bmw -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

