Originally posted by K57XR If this is in reference to AF accuracy then it pretty much answers my question, Thanks!
Yeah, sorry AF accuracy is what I meant. I've used both side by side for about a year and while the difference is nothing dramatic there is no question in my mind that the k-3 is a noticeable improvement over the k--5IIs in the AF department.
Originally posted by slip I have found the K5iis better then K3 in high ISO performance.
You could be right, I rarely use anything over 800 ISO so I'm not a good source for high ISO info. I initially found that k-3 images had more noise at a given ISO than a similar k-5IIs image. However the extra megapixels in the k-3 allow you to add a slight amount of noise correction in Lightroom, about 10 to 20 on the scale and achieve an image that is at least as good and usually better than the k-5IIs but significantly larger. YMMV of course and my tests are all at 800 ISO and lower.