Sadly, I recently sold my pentax K-5. As some of you may have seen, I've ranted endlessly about my poor microcontrast experiences with the K-5. I've got about 50,000 shutter actuations between the k-x and k-5 and have come to the conclusion, without any doubt, that the k-x's microcontrast is substantially better than the k-5. I've just had so much trouble getting certain portraits to "Pop" with the k-5 algorythms and feel that microcontrast is something that is very difficult to get to look natural in PP. I have done quite a bit of research into the Nikon D6000, which I believe has the same sensor as the k-5 and I've read and noticed that it also just doesn't have the lustre of previous cameras with lower megapixels, despite the 14 bit processing. I almost think that the "megapixel war" is comprimising crop sensor output. Many people have disagreed with my statement that the K-5 images lack microcontrast, but to the critical eye, small differences become obvious. I slapped on the Tamron 70-200 2.8 macro the other day on the k-x after shooting strictly with the sigma 85mm 1.4 and fell in love again. This lens renders amazing microcontrast despite "sluggish" autofocus. It's plenty fast for me on the k-x. Skin shines with brilliance in the sun, hair shines and the eyes glimmer in the sunlight, with the right composition. I always had trouble getting portraits to pop with the k-5 like the k-x no matter what lens or lighting I used. The first picture is the tamron on the k-x and the second is the tamron on the k-5. They're both raw converted with photoshop, with exposure adjustment. I really feel that the k-x would be the perfect camera if only it had 14 bit processing and autofocus points displayed in the viewfinder, to confirm placement when working with wide apertures. I also noticed that many times, bright areas on the face would have very fine blue and red "dots" or pixels on the face with the k-5/Tamron 70-200 combo when blown up to 100%. I'm not sure what that is, but it never happend with the k-x. Well, it's just nice being able to have equipment you love and can depend on and not worry about having to upgrade each time something new is released.
Last edited by outsider; 09-17-2011 at 12:03 AM.