UV WhiteBalance using my ReflectionDisc.
[click on image to see a larger one]
Reflected UV "colors" are according to the previously described "UV color palette" related to wavelength:
A visible comparison shot taken a few minutes from the one above looks like that:
Note the very different colors and especially the fogged background due to Rayleigh scattering of UV light which is much stronger for UV light than for visible or even IR light (this is why IR is so often used to penetrate clouds = make them transparent).
Stay tuned, more will follow on that fascinating subject...
More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos