Looks like Pentax will continue the tradition to keep things compact. It is also good to see the FA style aperture ring is gone eventually. But it says Quick-Shift Focus System works when mounted on *istD, what about other cameras?

Alan Chan
http://www.pbase.com/wlachan

Just saw this on DPreview:
http://www.dpreview.com/news/0408/04080801pentax_lenses.asp

Seems that they are taking the design of the DA 16-45 to some degree.
The slick focus mechanism which allows focusing manually or auto
without flipping a switch or pulling on the focus ring (FA* style)
along with much lighter weight.

There used to be a few reasons why I preferred my Tamron 90/2.8 macro
over the FA 100/2.8 - weight, size of focus ring, smoothness of manual
focus.  Seems that Pentax has made it so there is no reason to go for
the Tamron anymore.

On top of that, these new lenses are full image circle and have
aperture rings!  This should be big news to all who are retaining
older camera bodies or hoping for a full frame DSLR at some point.


-- Best regards, Bruce

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