Recently upgraded from a Nikon D40 to Nikon D90. I am currently using Photoshop CS4. Pictures taken in RAW on my D40 that are stored on my hard drive have no issue opening in Photoshop. Pictures taken on the D90 will not import into Photoshop. I get an error message stating "Could not complete your request because Photoshop does not recognize this type of file". Both files are .NEF (Nikon's RAW format). PLEASE HELP!!!!!!!
Just be aware that practically all Nikon raw files have the NEF extension although they can be very different in content from different cameras.
Similarly, most Canon raw files are .CR2 regardless of content.