How far should the shooting light of Canon 500d indoor studio be from the main body?

This situation belongs to indoor shooting, that is, indoor shooting;

Generally speaking, we should take care of the exposure effect of photos first, which will involve the lighting effect of lighting, such as how many lights you want to shoot; Then there is the shooting effect you want, which is related to the focal length of the lens you use and your shooting space and distance; Then there is the scope of your composition now, such as taking a panoramic view or a close-up. This will also affect the distance between the lamp position and the main body. If you are shooting a person, it depends on whether you are shooting a full body or a bust, a single person or a group of people, and so on. General exposure will achieve the desired effect and photo effect, and light is appropriate as a reference. The closer to the main body, the stronger the light. The farther away, the other way around. If you want to know more details, please elaborate.