I just got my 1DX yesterday and noticed the JPEG quality setting was set to 8 by default. I have been shooting with a 5D3 for over a year now and of course that option is not on the 5D3. I started to compare some JPEGs of the 1DX and the 5D3 and noticed that the 1DX jpegs (quality 10) have a little larger file size than the 5D3s even thought the 1DX has less MPs so I am assuming that the 5D3 compresses the jpegs more. Am I correct? Also anyone see any reason why I would need to adjust my JPEG quality down from 10 assuming I am not worried about the little extra file size? Now I don't want to start a JPEG vs RAW war but I was just curious if anyone knew more about it and why that option is not on the 5D3.