"Great camera!"4.5 starson by JS_Photographer
Pros: 10 MP, Quick response shooting Raw, big buffer
Cons: Can't use pop-up flash with external flash attachment
Summary: I've used Pentax film SLRs since 1989, but this was my first DSLR. I came close to jumping to Nikon last fall when the D80 came out, thinking that Pentax would never release a 10 MP DSLR, then, a week after I almost pulled the trigger on Nikon, I read the Pentax announcement.
I've used this camera since late November 2006 and it's worked great. The battery charge last a long time and holds a charge for a long time even when not used. One of the things I liked with the off-centered hot shoe of Pentax film SLRs was that you could use both the built-in flash and an external flash simultaneously; with the K10D the pop-up can't come up because the flash attached to the hot shoe blocks it. But that's a small matter. I have about 10 Pentax lenses and I wasn't looking forward to dumping them if I moved to a different camera brand. I've tested all of those lenses on the K10D and all work just fine.
I was also wondering if I'd need fast SD cards, or if the camera buffer would hold several Raw shots, so I pressed the shutter release as fast as I could for about 8 frames and it had no trouble keeping up. I shoot a lot of quick brackets with a macro lens so this is important to me. And when you open the Raw images in Photoshop, you can get the equivalent of a 25 MP camera, with no visible loss of quality (that applies to all Raw images, not just Pentax, but it's amazing).
I doubt if this camera will lure many people away from Nikon or Canon, but for those of us who have been shooting Pentax for a long time, I offer Pentax a hearty, "Thank You!"