aspects of depictions

Every aspect of every depiction in a photograph is either of two things: non-“light”-related (forms and shapes) or “light”-related (tones and colors).

Most depictions of things in photographs have both non-“light”-related aspects and “light”-related aspects.

For example, a simple photograph of a car will show both

• its “tone and color” (dark red) and

• its “form and shape” (small hatchback)

Those aspects are “light”-related and non-“light”-related, respectively.

TTG allows changes to “light”-related aspects such that the result does not misrepresent what the camera lens saw (as per P7)

. . . but TTG allows only a select few changes to non-“light”-related aspects (as per P2).