On the 5D2 (and presumably other Canon DSLRs, you can set owner, photographer and copyright name in EOS utility, so that this then always appears in EXIF data; however, as far as I can see, you can't set copyright status (e.g. copyrighted) so that it always appears - as far as I can see, this has to be done post capture, like when you are adding key words. Is this correct?