Congratulations on the buy. You'll love this one.
I bought one a few months ago ready to receive the K10D. I'm sold to this lens...
A lot of praises have been heaped on this lens. Here's mine - sharpness is amazing at all F stops. Colour rendition is very pleasing. And the bokeh, oh my...
I rencently showed off my K10D with 77mm ltd to a friend that owns a D200. He was not only amazed by K10D but more so with 77mm lens (and at the kit lens too!). His point was - how can a lens be so small and still deliver such good results??!! See, he's used to bazooka's masquerading as lenses