From what I understand, there is no true dpi assigned to RAW files out of a camera. I think the dpi is assigned by the capture software when outputting.
For instance, when I used Camera RAW to process cr2 files from a 5D Mk II, the software-assigned resolution was 256dpi.
However, I now use Capture1 Pro to capture and edit, and the software doesn\'t assign any dpi, but let\'s me assign one from a range well below and above 300dpi when I output the files.
Like I said, I\'m not 100% certain, but given my experience, I tend to believe the RAW files don\'t have an out-of-cam resolution they adhere to. If they did, I wouldn\'t be able to output full-sized images from for C1Pro without IQ loss.
Jun 06, 2013 at 10:18 PM
Previous versions of Skarkowtsky's message #11604308 « 5D MarkIII 300 dpi out of the box »