How does the camera set the video to be clear?

Try to answer, I hope I can help you.

First, clarity and texture are two different things.

Sharpness refers to the depth of field, the clear range within a certain distance from the focus.

There may be three reasons why the subject (focus position) is not clear enough:

1, the shutter speed is too low, lower than the safety shutter. The safety shutter is determined according to the lens used and the subject. Generally speaking, try to be quick. )

2, camera shake, resulting in blurred images. You can shoot with a tripod or practice with a camera.

3. The subject is in a dynamic state.

It says that the subject is clear. If you want to make the whole picture clear, there are two important reasons:

1, the aperture is too large. Turn down the aperture, and the whole picture will be clearer. Optimum aperture F8 F 1 1 F 16.

2, the focal length is too long or fixed focus. If you use a small focus of 50 1.8, the depth of field is easy to be small, that is, the background and foreground are easy to blur. Especially when your camera is close to the subject, such as your first photo.

I want the whole picture to be very clear: lower the aperture, use a wider focal length (even if you set the focal length), and keep the camera away from the subject.

Texture is the detail and level of the picture. For example, the coldness and hardness of steel, the softness and warmth of silk, the toughness of cowboys and the silky silk scarves are all manifestations of texture.

Texture means that people can feel the truth when they see photos, just like the feeling that things are within reach. Seeing pictures of textured food makes you hungry, and children want to pinch and kiss with tender faces. . . . .

So how to get the best texture? There are two suggestions for your reference:

1, light. Light is the soul of photography! Light is in the hands of a photographer, just like a brush in the hands of a painter and a carving knife in the hands of a sculptor. The formation of texture is composed of countless different points, lines and surfaces. How are countless points, lines and surfaces formed? Very light! ?

Light outlines points and lines through light and shade, and shapes the texture and details of the picture through soft and hard. It can be said that the texture of photos is mostly determined by the light.

How does light affect texture?

In fact, it is a question of how to choose light and how to choose light distribution.

Just these two days, I talked about the basis of light in class, so tell me more.

1) Select the appropriate light texture according to the texture of the object. There are two kinds of textures here, don't confuse them. Let's talk about the first one: the texture of the object. Leather goods are hard and plush toys are soft. Let's talk about the second one: light is also textured. Direct light is hard, such as the sunshine at noon on a sunny day, with great contrast and shadow; The skylight on a cloudy day is very soft, with almost no contrast and no shadow.