Thanks for reply. I'm using a Canon eosMII calibrated, shooting raw, (although that's not much different from a jpg under those circumstances)
So, I've been shooting for 40 years plus, so I might be of help to you, maybe together we will find a solution? Yet I suspect not, as it seems to my mind an issue we cannot over come.
It took a moment to understand your suggestion, I see it might be informative, to shoot a color chart in a full spectral range, ie sunlight, and then see what it looks like under leds? I think that it would only illuminate the patch that corresponds to the wavelength of that particular LED? I should test it.
To be specific, the worst culprit is that magenta/purple color, my assumption is that the frequency is so narrow, it's like shooting in monochrome.
Unlike incandescent, household lamps, old theater spots, cinema 2ks, tungsten halogen, all these lamps seem to have a much wider spectrum of color, even after a correction either in camera with a filter, or in post with a color correction. Meaning, if I shoot with my white balance set to daylight, under room lights, that's a difference of 5,000k to 3, 000k, so the image will look overall yellow/red ish, but with these lights I mentioned above, if I remove the yellow bias, (cast) I find the whole range of colors, blues through greens etc. (obviously not quite as pure as were I to shoot it with camera set to 3,000k
So, my point is that prior to leds, there was a much broader, richer and pleasing quality to the lights. If my assumption is correct and it is because the frequency is extremely narrow, I cannot see a solution? ( I suspect I'm not alone in this, and that many people are pushing to change this)
PS... going out on a limb here, it does have everything to do with white balance, yet nothing at all. When we set our white balance(avoid using anything on auto) we are setting the camera to respond to the "overall color temperature" IE outside, 4,500k - 6,500k indoors 2,000k-3,400k approx
I don't see how it's possible to set a white balance to a very narrow definition, if that's how to describe it?
pps, I see that those ghastly compact fluorescents are improving, they used to be a bilious blue, nor thay come in different temperatures, and they havea f=great spectral quality.
Adrian