Iliah said:Dear Gordon,
Of course it is not a problem to post-process the shirt to its original colour. It is a "solid piece" and "solid tone", any selection is easy. But - there are at least two other problems, associated with IR: more noise in darker colours, and that other tones are also affected with IR.
If face is not overexposed, shirt also should not be IMHO. I agree it is closer to navy blue on this image.
But if it were metamerism wouldn't it also be visible to the human eye? If the shirt looks black in person but blue in the image, then it seems I don't understand how that could be caused by metamerism.Robin Horlock said:My experience shooting clothing tells me that it is not IR
contamination, but it is the type of dyes used in the shirt
that are throwing the colour off.