twenty_one wrote:
The histogram confirms it:
Not only does the blue channe contain very little information, it also drops off to full clipping much sooner than the other channels. But just shifting the white balance towards blue doesn't help - then you get the opposite problem in the highlights. This is in fact the way it turns out when you eyedrop for correct white balance.
Visually, this lack of blue information translates to a heavy, unpleasant yellow without "air". I recognized George's problem here because I have struggled with it myself.
One thing that may help is to make a Tone Curve adjustment to the blue channel, something like this:
Or perhaps use the Split Toning panel. I do both, depending on circumstances. But that won't safeguard against clipping - for that you need to make certain to give adequate exposure to the shot so that you have headroom in editing.
Why this tends to happen to the blue channel and not the red (which has as many sites in the Bayer pattern), I just don't know.
Yes! that is the problem. Thank you! Thank you! Even if I don't know how to prevent it, at least I now know how to repetitively fix it. With some experimenting, I think 3 or 4 presets would cover most of the conditions I encounter with these events.
I should say that I tend to underexpose things slightly (-1/3) because of my fear of blown out white coats, and this Nikon seems to allow plenty of editing leeway in the darks --more than it does in the lights. Same goes for several other Nikon models I've had.
I didn't even know LR had a split tone curve, but there it is. I'm still finding things I never knew it could do.