On Wed, Feb 28, 2007 at 06:47:51PM +0100, Jens Bladt wrote:
> 
> On the Pentax usa website it is mentioned that the two new weather sealed
> lenses ("smc PENTAX-DA* 16-50mm F2.8 ED AL[IF]SDM" and "smc PENTAX-DA*
> 50-135mm F2.8 ED [IF]SDM") have built-in super sonic focusing motors.
> 
> But there's no mentioneing of what SDM stands for.

Supersonic Drive Motor, I believe.

> This has probably been mentioned or explained earlier on this list, but I
> failed to read about it.
> It is also mentioned that teh automatic switch between the two AF systems
> requires a firmware upgrade for the K10D. Which firmware version might that
> be?

Well, it might be 1.20, or it might be 2.0, or ...  :-) It hasn't been
released yet.  I'm sure it will be released by the time the lenses ship.
 
> Both models will be featured along with the entire line of PENTAX digital
> compact and SLR cameras and lenses in Booth G151 at PMA 2007 in Las Vegas,
> Nevada from March 8 ? 11, 2007.  The smc PENTAX-DA* 16-50mm F2.8 ED
> AL[IF]SDM will ship in Spring 2007 priced at US $899.95.  The smc PENTAX-DA*
> 50-135mm F2.8 ED [IF]SDM will ship at the same time for US $999.95"

Spring 2007 is a bit optimistic.  The currently-announced ship date is
May 15th, but I wouldn't be too astonished if the date slipped again;
the original announcement called for these lenses to start shipping in
March (together with the 60-250, currently not expected until December).


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