I have started to work and try RAW with my new Olympus E-PL1. There is a BIG difference in appearance and quality of processed images being done with PS5 ACR and Olympus Studio 2. See samples cropped 100 percent. The images from PS5 ACR (and Lightroom) are much more grainy and "dirty" than the images from the Studio 2. Any idea why? What is your experience? How the problem with ACR can be solved?