What should I know if I want to learn photography?

If you simply learn to use a SLR, you can adapt to shooting by knowing the following:

1, sensitivity (ISO), shutter speed and aperture size, the relationship among them;

2. The relationship between the viewing range and depth of field caused by focal length and aperture (that is, whether the background is empty);

3. Under what circumstances are various metering modes suitable and how to make exposure compensation.

After mastering these contents, it is more than enough to take pictures of the humanities and the scenery under normal light, or occasionally take some sugar water tablets for beautiful women.

If it is unusual, for example, the contrast between light and dark is too large, the portrait is high-key and low-key, and there are many special techniques, you need to learn optical knowledge again. If you think the picture is not harmonious, it will be deep. You need to learn color matching, picture layout, and even some art basics, photography psychology and so on. And that was n years later, hehe.

If you see a master's work, then ask me how I want to shoot it to be like him. Then, with other people's shooting data, you can shoot similar works at the same time and place, but if you want to shoot like that often, you have to spend your whole life studying and exploring.