A small problem of photographic lighting

You can say any lamp will do. An ordinary desk lamp at home will do.

Ceiling lamp, wall lamp etc. They can't move because they are fixed and the light distribution is limited.

As for nightlight, we call it a night light here, which means a very weak light that can be turned on all night.

It is not that it cannot be illuminated, but that the light is too weak.

Whether it's 1W nightlight or ordinary 25W, 40W, 60W,100w ... ....

When turning on the light, it is beneficial to shorten the exposure time, improve the success rate of hand-held shooting and reduce the noise.

If the lighting is weak, a stable tripod and a relatively long exposure time are needed.

Of course, this means under the same aperture.

Photographic lamps can be divided into two categories.

One is continuous light source, also called ever-burning lamp, such as incandescent lamp, fluorescent lamp and energy-saving lamp at home.

There are also lamps specially used for photography.

The other is a flash, which you should also know.

The flash can be directly built into the camera or directly installed on the camera. There is also a special flash for the studio.

The operation and power of these lamps are different, but the meaning is the same.

Strictly speaking, the color of light emitted by each lamp is different.

Some are cold (blue) and some are warm (yellow).

This is because their color temperatures are different.

If you need to get the right color, you need to set the white balance of the camera correctly before shooting.

As long as the white balance is set, the correct color can be basically obtained in the current lighting environment.

Regarding color temperature and white balance, this problem is actually very complicated. There are many knowledge and links involved.

I can't describe it here, please understand.

Because your question is also very general and involves many concepts. Can't say one by one.

You are welcome to ask further questions and explain in detail.