Re: 10 MP Pentax "D2" versus 10 MP Sony DCS-R1?

[Mark Roberts]

Juan Buhler wrote:

>I might be wrong, but wouldn't an usm motor add to the price, bulk and
>weight of the lenses?

Yes, but it's probably more than made up for by the cost savings in
glass reduction (of a DA lens compared to a full-frame lens).