I read that the GH4 LUT created by the Fujifilm IS-mini Color Space Converter is worth considering. This program can be downloaded from here, and is free until the end of 2016. I'm not clever enough to choose the proper options, but I figure others here probably are. Below is a screen shot of the GUI. Note that when you click on Panasonic GH4 it downloads a LUT for that camera. Hmm.
