Originally Posted by
anrkitec
The older Pentax SMC-FA auto focus lenses for the PZ/SF series work on the newer digital bodies.
The older Pentax SMC manual focus lenses will fit as well.
Remember also that Tokina is now making Pentax's lenses so you shouldn't see any drop-off in quality from what you would expect with a Pentax AF lens by going with a less expensive Tokina.
Yeah, but there still aren't nearly as many lenses out there for the Pentax bodies as there are for the others. Like I said, I love mine and like the options I have on it, but for people buying in to a system new right now I'd suggest the two big boys.