That is an amazing bit of info that I had NO idea about before! My stuff has been so noisy, no matter what I did. As I work through the tutorial, Jonathan, I find all this info new to me!
One request: I wonder if, when you mention raising or lowering values (for a tutorial next time), if you could say what the values are that you're using, instead of "this" or "here", because it's somewhat difficult to read the numbers on the video and follow where your cursor is, at least for me. That would be so awesome because I'm hanging off your every word on the lighting stuff! I just want to get a better idea with my low vision.
Thanks so much for sharing this! I'm learning sooo much right now!