On Sun, Mar 30, 2008 at 11:16 PM, <[EMAIL PROTECTED]> wrote: > True. And the in-lens motor seems to make a difference as well. The DA* > 50-135/2.8 focuses more quickly and more accurately than the FA 50/1.4. > Paul
Paul, I wonder how the focussing ramp length is influencing the AF speed. In this regard the FA50 has quite a long focussing ramp. I dunno about the 50-135 however but I know my dA18-55 often focussed faster than my FA50/1.4 (!) -- Thibault Massart aka Thibouille ---------------------- Photo: K10D,Z1,SuperA,KX,MX, P30t and KR-10x ;) ... Thinkpad: X23+UB,X60+UB Programing: D7 user (trying out D2007) -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.