While at my desk recently, (sitting there thoughtless – for me, a common place to be,) I took this picture of the ceiling above, which slants down to a skylight.

What’s interesting, or not, is the fact that except for the window, the same color paint was used on the same type surface. Only the angle of the outside lighting is different. Yes, it’s called Illuminant Metamerism, and was a consideration for which colorants (pigments) were to be utilized in my early career in the color matching science. Ultimatly that  led to “getting a (good) life” in my chosen career field.

There’s no point in zooming in on this image, but as usual, comments are always welcome. M:-)