DxO Labs' DSLR RAW tests are freely available for anyone who wants to look up and then quickly compare the sensor abilities of many of the top-selling cameras. I think their published results actually prove how remarkably similar all the DSLR cameras behave across markers like dynamic range and color depth. Sure, there's latitude, but within given groups, it's not that wide at all. When the latest image quality test results were published for the K-m (K2000 in the U.S.), I thought it would be neat to do a comparison versus the K20D and the Canon 50D, both of which have similar features to the K-m, but obviously more bells and whistles (higher resolution, expanded ISO range, etc.). How did the K-m fair? Not bad at all. Take a look:
"The K-m even improves on the more expensive K200D in some areas, notably a faster continuous shooting speed of 3.5 fps, expanded ISO range of 100-3200, and a less cluttered main menu system. Admittedly there are some downgrades, most notably the 5 point AF system which makes it more difficult to track moving subjects, slightly less powerful pop-up flash and the complete lack of any Live View or Digital Preview functionality (the K200D offers the latter).
Given the aggressive price-point, however, the Pentax K-m certainly hits the mark in terms of features, performance and most importantly image quality. The only major difference between the K-m and K200D is that the latter offers better low-light performance, with intrusive amounts of noise appearing at ISO 1600 rather than 800 on the K-m. In all other respects the 10 megapixel images from the cameras are very similar, with very little purple-fringing, accurate colours and a useful built-in flash and Bulb exposure mode, all delivered with the minimum of user input and effort."