Still haven't found a satisfactory conclusion for this post. Several ambiguities:
1. Is the GH2's matrix BT.601 BT.709 or neither? I have heard all of the above from contradicting sources who I'd thought were reputable. 709 seems to be the most popular response, though it differs from the recommendation at the beginning of this thread. I'm not intelligent enough to get that information out of Mediainfo for .MTS streams. Is it listed anywhere below?
[img]http://public.fennworld.com/Misc/Media_Info_MTS.png[/img]
2. Can the GH2 record 'full' unscaled luma? I believe it records 16-235, but if evidence exists to the contrary please present.
3. If the range is indeed scaled, then one should not use 'Full Range' in the 5dtoRGB options, correct? Or would that not potentially degrade the image as that program doesn't seem to export anything but scaled video anyway?
4. Premiere Pro CS6 recognizes the full range flag and scales video, as pointed out by Yellow and readily confirmed by his test files available for download. Opening GH2 .MTS files natively shows a scaled image in the waveform, but could this be due to flagging issues like with Canon files? If the GH2 ends up delivering a full range image then this is an issue, no?
5. Recommendations often center on transcoding via 5DtoRGB to the chroma subsampled flavors of ProRes (anything but 4444). A screenshot [u]from Premiere[/u] shows the following difference in my tests between 422 HQ and 444 at 400%:
422HQ:
[img]http://public.fennworld.com/Misc/422.png[/img]
4444:
[img]http://public.fennworld.com/Misc/444.png[/img]
Why the jagged stair-stepping? I don't believe this is carried through to output--certainly hope not or no one would recommend it--but why does the file sent through 5dtoRGB and converted to 422 or 422HQ look so much more aliased than the original or a 4444 transcode inside of Premiere?
6. How does one change the full range flag on .MTS streams? I've run some basic commands via MP4Box in terminal before, but am not familiar with the patch for modifying that flag, nor do I know if it would be Mac compatible.
Thank you all for your time and insights.