I am a post production guy and new to this forum so please excuse my Terminology / Jargon.
Yes I was looking for a guide to set them up to a neutral looking footage while shooting so that grading is much easier.
So we did a quick test. As for the Panasonic GH3 We liked the Standard Picture Profile so then we had to match the 5Dm3 to a matching neutral footage. Heres what I found:
Acceptable ISO Range is 200 - 800. Image is pretty Clean on ISO 400.
Camera has slight Magenta-Cyan Bias which needs to be corrected in Colour Space Settings.
The Under-Exposure tolerance is lesser compared to that of over-exposure.
Standard is recommended for good milky footage.
5D Mark III
Camera has slight Green-Yellow Bias. Adjust that to match GH3.
Picture Profile: Film PS
Colour Tone: 0
Heres a bit more on Film PS if you wish to check it out
Of-course we would match the colour and grade in post but some qualities are much easily dealt with on shoot like contrast and sharpness correction in post is more tedious than while acquisition. I mean you can add it easily but subtraction is not a good idea in post.
Also here, we are one of the few post production houses who are trying to shift entirely to the adobe space. People still use FCP here so ... everything is experimental.
Yes would be doing that.
The GH3 is a great cam for the stuff we are doing. The problem is GH3 is not easily available in India as of now. We're getting another one shipped for B Cam but till it arrives we had to use the 5Dm3 as B cam. If you can suggest some other camera which is as good as the GH3 and in a similar form factor we'd try and use it.
Panasonic GH3 with Standard Picture Profile (WB is off)
Canon 5D Mark 3 with Film PS and adjustments