415. What if I think TTG has too many gray areas, without enough clearly spelled-out limits for things like how much contrast or saturation is too much?

Any limits that are not present in TTG are absent because they would be arbitrary and unrealistic.

Particularly on “light”-related issues, there are far too many variables to establish any numerical limits.

For example, one photographer using one brand of camera might choose to increase contrast by 20 percent to avoid “misrepresenting the appearance of the scene” (to meet P7), while another photographer shooting the exact same scene but with a different camera might reduce contrast by 20 percent to meet P7.

Since setting arbitrary numerical limits would be less than optimal, TTG instead relies on rinairs in P7 to make any judgment calls about misrepresentation.