I can offer a roundabout comparison: I have tested the FA 20 F2.8 against the DA 16-45 set to 20 mm. The test was for sharpness, with the subject a mud-brick wall. The FA 20 definitely wins.
I have tested the FA 20 agains the DA 21. Same test for sharpness. They are very, very close. I call it a draw. Therefore I would be very confident that the DA 21 is sharper than the DA 16-45 at 21 mm. Jow -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
