Originally posted by ElwoodP Thank you to everybody that contributed to this thread.
As an update, I just purchased a K3 and it is in the mail. I feel like it is the best use of my funds right now.
Now to maybe start a new discussion....
Would you choose a Tokina 28-70/2.8 or the DA 18-135 WR?
The K-3 is a very fine camera, the next model after the K-5 IIs. An excellent choice, and I am glad you could swing a camera that good. I know the Tokina lens you speak of. It was a cheaper (but still decent) model released at a lower price, after the better- built and better-performing 28-70mm f/2.6-2.8 pro II, which I have. Both of these lenses are made for 35mm film or a full-frame DSLR. On your excellent APS-C size sensor K-3 body, there will be no actual wide angle at 28mm, as it would be on a FF body. The main reason to get a shorter-range zoom lens having a constant aperture capability of f/2.8 would be for low light and/or fast action shooting to increase shutter speeds.
The Pentax DA 18-135mm lens is wonderfully versatile and is compact for such a zoom range. It presents fine imaging, especially out to 70mm, with the central area of images from it in the excellent rating throughout its zoom range. It is vey well-built with WR construction, and has fast, quiet, and accurate AF. There's a lot this lens can do well, from wide-angle scenics or group shots, to closeups and portraits. I have one of those also and it gets a lot of use when I need that versatility. I recommend it highly.
The K-3 is a very well-built camera body with WR construction, excellent features, and very fine imaging, But no camera can be truly WR unless the lens attached to it is also of WR construction.