The Panasonic GH5 is now officially announced after the Photokina preview phase. Panasonic have released all the details, some of it a little bit controversial.
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I should have used the term 'YUV chroma smearing' ...it's been a while.
Here are two link where Lpowell explains about it.
http://www.dvxuser.com/V6/showthread.php?340370-Exposing-V-LOG-L&p=1986578386&viewfull=1#post1986578386
http://www.dvxuser.com/V6/showthread.php?340370-Exposing-V-LOG-L&p=1986578534&viewfull=1#post1986578534