The last day. And, my head is spinning. I’ve learned so much. Sort of. From experience, I know that no matter how much knowledge I cram into my head during a conference or seminar, I really have not learned it until I use it.

For a while it was a mystery. I just didn’t get it. No matter how I set the white balance in my Nikon cameras — be it preset or custom — when I opened my images in either Adobe Camera RAW (ACR) or Lightroom (which are, in essence, the same thing) the White Balance number would be way...