Well, I GotDPI'd again and bought a K-5 .
Choosing lenses has proven more difficult than I had anticipated, and I was hoping to get some lens guidance, specifically for a short tele. My priorities are lens size/weight (smaller is better), bokeh rendering (less bright/double edges better - don't care about number of blades/shapes or cat's eye), control of longitudinal CA (glaring bokeh CA is a pet peeve), and lens speed (f/2.8 or faster).
Based on tons of sample images, I don't love the 77/1.8, and for that price, I would have to love the rendering. I'm more positive on the samples I saw from the 70/2.4 and would love to get some specific input regarding that lens. Minimum focus distance will be a bummer since I'm so used to getting as close as I like with the Pana Leica 45, but I can get over that.
I'm considering the Sigma 50/1.4 (found samples here), and I love the rendering. It's a heavy lens, though, and I always worry about focus accuracy with Sigma lenses.
Willing to consider zooms, possibly Tamron 17-50. I had the Canon version of this lens 3-4 years ago. Has the formula changed at all? Anyone using this lens with Pentax?
Are there other options I should be considering? My mind keeps coming back to the DA 70/2.4. Seems like all this talk about Limited lenses has taken hold.