Hi Damien,
I just purchased a monitor calibrator per your suggestion before beginning the RAW editing course. I went with the SpyderX Pro and it should arrive early next week. My question is, I went to the article: "Read this before you calibrate" and you suggested going to my Display settings and turn off specific preferences such as the automatic brightness etc. I have taken a screen shot to show the options. I am assuming I want to turn both of these OFF? Also, what about the area that is currently set at Color LCD. Should that be changed? The screen shot shows all of the available options for my MacBook Pro. Thanks Damien.