George Paul

I am new to the Sony a7s II. I bought it to film in 4K in coral reef ecosystems. White balance is difficult underwater, and I am grappling with that issue. I am new to all this. Any recommendations on picture profiles? I have been advised to film in "log" so that I can do a more sophisticated job in the color correction, or grading, in the future. Assuming use of a picture profile, how does one get from its flat appearance, to something that looks bright and colorful, like a tropical coral reef underwater? Must you use a LUT, and if so, where to get them? And don't you have to get a LUT that is specific for a picture profile? Or not? I have been scouring the Internet and am surprised by how little guidance there is about this topic. It seems esoteric, at least to me. For example, assume I don't want to use a LUT, but instead do all the grading and color correction in Premiere Pro's Lumetri workspace. Where on earth would I be able to read on how to do that? How to skip over the "Basic correction" LUT operation and do things yourself? Many thanks, George Paul