On Fri, Feb 23, 2007 at 01:00:40PM +0100, John Whittingham wrote: > On Wed, 21 Feb 2007 23:57:53 +0100, Thibouille wrote > > http://forums.dpreview.com/forums/read.asp?forum=1036&message=22150903 > > > > -- > > > > Thibault Massart aka Thibouille > > ---------------------- > > *ist-D,Z1,SuperA,KX,MX, P30t and KR-10x ;) ... > > Ooooh! SMC Pentax-DA* 300mm f4 ED IF SDM, yes please, gimme, gimme 8) > > John
I'm sure it will be. Quite apart from anything else, SDM offers the most advantages with larger, heavier lenses; a larger motor can be fitted, providing more responsive focussing. But, in any case, I very much doubt that we'll see any new lens designs that don't have SDM - that's the way of the future for Pentax. What will disappear is the old mechanical screwdriver autofocus. We'll eventually see camera bodies that won't even have an in-body autofocus motor, and will only autofocus with SDM lenses. The first such body (no more than five years from now) will almost certainly be a low-end entry-level model, where the price savings are significant. But I expect it will gradually spread throughout the range, until screwdriver AF goes the way of the aperture simulator. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
