Colour rendition - Binoculars
Good binoculars ensure that the colours of an image appear natural and in clear contrast. The quality of the optical elements and the coating used in the binoculars greatly affect the colour rendition. Binoculars of a poorer quality can cause a colour cast (deviation from the colour rendition) and render a rather faded image.
In the picture below, although the colours have been changed by the computer, it gives an impression of what could happen.