What is the effect of black and white jumps with few transition levels on the photographic screen?

Difficult to adjust. Light has soft and hard properties, that is, light quality Strong light will produce hard-toned images, while soft light will produce soft-toned images. Shadow tone is the keynote of photographic works, including light and dark levels, contrast between reality and reality, color and so on. The expression of shadow tone can make the viewer feel the flow and change of light. Photography mainly studies art, aesthetics, composition, photography, pictures and so on.