Light used in photography.

Light mainly includes four characteristics-light intensity, light properties, light directionality and light color.

We mainly talk about the directionality of light, that is, we often say smooth, side light, backlight, top light and ground light.

1, backlighting: This is a kind of light with the flattest effect. No use of the stereoscopic impression and spatial depth of the subject, lack of vitality.

2. Side light: The effect of side light is obviously improved, and the change of light and shade produced by the subject shows a sense of standing and surface texture, which is more in line with people's normal visual habits, so it is widely used in photography.

3. Backlight: Silhouette can be formed to outline the shape of the object and separate it from the background. Forming bright lines on the edge of the object shape can render the atmosphere to be expressed and enrich and activate the picture.

4. Top light: The effect of top light makes the picture feel hot, which produces strong projection under the eyes, nose and chin of the character, and plays an ugly role in the image of the character.

5. Ground lighting: Ground lighting will cause a "ghost light" effect from bottom to top, which is often used to eliminate the shadow caused by lighting such as top light.