What are the five colors and three tones of photography?

Three lights and five tones refer to the basic relationship between light and shade.

1: Three sides: black, white and gray

A: The bigger the angle, the brighter it is; The smaller the angle, the darker it is.

B: The contrast is fanned out from the center to the periphery and decreases.

C: Three faces need to be changed. At the same time, every black face, white face and gray face in the picture is different.

2.5 Tone: The whole is the key, and contrast is the magic weapon.