Iphone8p portrait mode, what does portrait lighting mean?

The portrait lighting mode of iPhone8 is very novel, which can create different lighting effects after taking pictures. But this function is mainly realized by software algorithm, so it is harsh in shooting scenes.

It is necessary to distinguish the intensity of light. Strong light is usually emitted by a single light source, such as the sun, a spotlight, a flash or a single light bulb. In this light, the contrast is great, and the details and texture are outstanding.

This kind of light can be used to obtain the documentary effect. On the contrary, the light quality produced by diffused light is soft, and good portrait photography can be taken with scattered light. Indoor indirect lighting, outdoor shading and cloudy days all belong to this situation. In this light condition, it is ideal to shoot portraits and quiet outdoor scenery.

The method of expanding data to make portrait lighting effect;

Triangular column

There is nothing special about the use of prism: put your hand in front of the camera and use manual focusing+live view to adjust the special effects. However, in terms of specific effects, there are many ways to play the prism.

It is necessary to constantly adjust the position of the prism and change some key parameters: the incident angle of sunlight, the distance from the prism to the lens, the position of the prism in the imaging picture and so on.

The simplest way to play, like the optical experiment in primary school science class, uses the dispersion effect of prism on solar light to create glare of many colors, even rainbows.