On Sun, Mar 29, 2009 at 3:47 PM, Joseph McAllister <[email protected]> wrote: > On Mar 29, 2009, at 12:34 , Adam Maas wrote: > >> 2009/3/29 Margus Männik <[email protected]>: >>> >>> Depends. If you take K10D/K20D, that has powerful internal motor, there's >>> no >>> difference or the shaft drive may be even faster. Switch to K200D or K-m >>> and >>> you'll see the difference. Remember the film days - many said that Pentax >>> AF >>> is sloooooow... until they tried the same lenses with Z-1(p) or MZ-S. >>> DA55 - I really don't know, why your copy is THAT slow. I've tested one >>> and >>> it wasn't much slower than FA50/1.4. Have you tried another copy? >>> >> >> The K10D/K20D do not have powerful AF motors, although they are >> noticeably less wimpy than the lower-end bodies. None of the Pentax >> bodies do (as compared to bodies like the Nikon F100 or F5 or the >> Minolta 7 or 9, the latter two have been known to strip gears in some >> lenses due to the torque of the AF motor). > > > And this is a good thing? > > If it doesn’t excite you, > This thing that you see, > Why in the world, > Would it excite me? > —Jay Maisel > > Joseph McAllister > [email protected] >
Not a good thing if you're talking about the Pentax AF motors, if you're talking about the Minolta's, it's merely a case of poor Sigma build quality meeting a proper AF motor (The lenses which had issues were low-end Sigma's with cheap plastic geartrains in the focus drive). -Adam -- 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.
