Not quite sure of the answer but I know that if you go intothe Color Picker in Photoshop there is 100 variations between White to Black as it's set in percentages which is the B-Channel of the (H)ue - (S)aturation - (B)lack panel - so the answer would be 100 greyscales independant of the number bits in the image.
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maiden is filmed before a live studio audience,
Wed 12 Nov 2008, 15:01,
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