What is scattered light? How is scattered light produced? What is scattered light?

1. Scattered light is caused by the collision of photons and material molecules, which changes the direction of movement of the photons and scatters them at different angles.

2. During the propagation of light, when light irradiates particles, if the particles are many times larger than the wavelength of the incident light, light reflection occurs; if the particles are smaller than the wavelength of the incident light, light scattering occurs. What is observed at this time is the light waves surrounding the particles and radiating around them, which is called scattered light or opalescence.

3. Photographic lighting light can be divided into direct light and scattered light. Direct light is hard light and scattered light is soft light. Scattered light is the light emitted by a light source with a large lighting area. Its typical scattered light is sky light. As well as lamps with soft glass, most of the ambient reflected light is scattered light. Such as water surface, wall, ground, etc. The characteristics of scattered light are soft light, soft transition between the light-receiving surface and the backlight surface, and no obvious projection. Therefore, the shape, outline, and undulations of the subject are not distinct enough. This kind of soft light should weaken the rough and uneven texture of the object and soften it. It is used to shoot people who look younger when they are old, and beautiful when they are young.

4. The choice of light is of great significance in delineating the shape, volume, texture, contour and other external characteristics of the subject. Under natural light lighting conditions, sometimes there is only scattered light illumination, and only a single direct light illumination is extremely rare. Most of them are direct light and scattered light mixed light illumination.