Cinima5D has completed their extensive review of the Panasonic GH5 and while the over all results are very good, but they discovered a few issues.
“It seems that none of these cameras truly records 1.1 billion colors and, unless my skin is made up of distinct color patches, there seems to be more to “10-bit color” than we know. Having tested and evaluated many camera sensors here at cinema5D, I can tell you this: none of this camera tech is as easy and simplistic as it might seem.”
“As for the Panasonic GH5… There really seems to be a problem with Vlog’s bit depth and colors, with skin tones being particularly problematic.”
You can read their full review here, which also includes a free LUT if you sign up for their news letter. You can also use the official Panasonic Vlog to rec709 LUT if you don’t want to sign up for their news letter.
UPDATE: EOSHD Responded to Cinima5D’s criticisms here, while they didn’t offer any evidence for their interpretation of the data they are a very respectable videography site. It will be interesting to see how this topic develops.
Cameralabs also did a comparison between the Panasonic GH5, Olympus OM-D EM1 Mark 2, Fujifilm X-T2, and Sony a7SII. Their review is still in progress, but I’m surprised with how well the Panasonic GH5 keeps up with larger sensors all the way up to ISO 3200.
“In the video I compare the low-light quality of the Lumix GH5, Olympus OMD EM1 II, Fujifilm XT2 and Sony A7s II in 4k 25p at 1600 ISO to their maximum movie sensitivities of 12800, 6400, 12800 and 409600 ISO respectively. Each camera was set to the same colour temperature and using its standard profile. I used lenses which delivered roughly the same field of view and adjusted the distances where necessary – the Sony samples look different due to the perspective of a longer lens and bigger sensor. The lighting was fixed and the exposures matched at each sensitivity, so any difference in brightness here is due to processing styles and variations in actual sensitivity.”
Finally Photogear news took the Panasonic GH5 to Iceland