SDM lenses can be *smaller* than lenses with mechanical AF coupling. On Fri, Feb 23, 2007 at 10:52:03PM +0100, Thibouille wrote: > Maybe not that soon. > DA Limited won't get SDM because of size, I think. > > 2007/2/23, John Francis <[EMAIL PROTECTED]>: > > 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 > > > > > -- > Thibault Massart aka Thibouille > ---------------------- > K10D,Z1,SuperA,KX,MX, P30t and KR-10x ;) ... > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net
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