The same can be said for the DA14. It is sharp even wide open, but it achieves it's best sharpness across the field around f/4-5.6. Test examples at a variety of lens openings @ http://homepage.mac.com/godders/14mm-examples/
BTW, I did test the DA14 with the Pentax MX. It nicely covers a 24x24 negative, producing a field of view much like a Hasselblad SWC. G On Jan 17, 2007, at 3:21 AM, Bob W wrote: >> At f8 all lenses are created equal. > > You've been looking at the wrong lenses. > > Even so, there's nothing difficult about the claim. He says it is > sharp wide open. That has to be a pro, because it's not true for many > lenses. But it is even sharper at 5.6-8 - that's normal for most > lenses. It is certainly not true that at f/8 all lenses are created > equal. However, if you believe they are then I will happily sell you > any number of Sigma lenses for slightly less than you'd pay for the > equivalent Carl Zeiss versions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net

