I have recently purchased the Nikon D4S and shoot in RAW+JPEG. I can open the JPEG images fine on my computer, but the RAW files will not open in Adobe Camera RAW in Photoshop CS5. I have already updated the program and still nothing. The message I get when I try opening them states: "Could not complete your request because the file appears to be from a camera model which is not supported by the installed version of Camera RAW. Please visit the Camera RAW help document for additional information." If anyone knows of a different route, PLEASE let me know.
Download a free copy of Adobe DNG Converter and convert the files to DNG format, which Adobe Camera Raw will read.