Objective: To take a series of five pictures of a brightly coloured object at exposures 1EV above and below the average (determined by the camera meter) in half EV increments to demonstrate the effect of exposure on a colour. The images are ranked in order from under to over exposure.
5770: 1/180s f16 200mm
5768: 1/180s f11 200mm (average exposure)
5771: /1/180s f9.5 200mm
5772: 1/180s f8 200mm
Conclusion: Apart from the obvious changes in exposure, the yellow colour has become brighter with increased exposure. There is also a definite redistribution of tones in the histogram towards the right as the exposure increased.