My experience has been the same as Paul's. Wonderful lens! -- Best regards, Bruce
Saturday, January 10, 2009, 10:26:12 AM, you wrote: PS> I've never noticed anything odd about the autofocus on my copy, other PS> than it's very fast for a Pentax autofocus lens. I've used it PS> extensively. Along with its 16-50 sibling, it's one of my most used PS> lenses. It's great in continuous autofocus as well. I used it in that PS> mode for that magazine cover pic. PS> Yours may have had to smooth out the assembly lubricant a bit. I doubt PS> that you'll notice any hesitation again. PS> Paul PS> On Jan 10, 2009, at 1:06 PM, Jack Davis wrote: >> Just finished (for the moment) checking out a new DA* 50~135 f/2.8 >> received yesterday from B&H. >> Right at this moment I'm in love..so to speak. <ahem> >> A question: When I first used AF, it seemed to be a bit stiff. I >> wondered if it might just be tight and would limber up with use. >> When refocusing with a substantial distance between focus points, it >> 'almost' felt like it re-focused in a couple stages. >> I just now rechecked the 'issue' and I don't believe I have one. >> This is largely a way of releasing a little of my pent up pleasure >> with the lens' performance, and at the same time, ask if such a >> focus anomaly(?) has been experienced by anyone else. >> >> Thanks, >> >> Jack >> >> >> >> >> -- >> 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. PS> -- PS> PDML Pentax-Discuss Mail List PS> [email protected] PS> http://pdml.net/mailman/listinfo/pdml_pdml.net PS> to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- 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.

