has anybody found a comparison of the 5DIII vs the HDMI 4:2:2 of the D800? I think the internal codec of the D800 easily wins in detail to even the "all I" mkIII one. But I'm really curious if the detail will improve using the HDMI out because both the D800 and 5DMKIII are still VERY SOFT compared to a still downscaled to 1080.
ALL-I stores less detail than IPB (ALL-I stores more noise & artifacts, which can look sharper/more detailed before post processing. PPro CS5.5's decoder exacerbates the ALL-I quality problem (macroblocking), whereas FCP7/Compressor's decoder does a better job). Post sharpening works great on IPB (and to a lesser extent on ALL-I due to noise & artifacts; it can become chunky/granular if sharpened too much).
Tested static shots, moving shots, low & high detail- haven't yet been able to get ALL-I to exceed IPB in detail stored. If anyone has an example showing ALL-I exceeding IPB, please post it (+100% still frame crops) along with camera settings (http://carousel.hu/c300/?page_id=395 shows ALL-I not looking worse than IPB, however the scene is not detailed).