What are the three types of color filters?

Abstract: Color filters are widely used in photography, which can be divided into three categories: color photographic filters, black-and-white photographic filters and black-and-white color universal filters. Generally speaking, different color filters should be selected in different situations to achieve better photographic results. The color filter plays the role of passing, limiting and preventing light. Next, this paper will briefly introduce what are the three categories of color filters and what are the functions of color filters. If you don't know, then take a look with me! 1. What are the three types of color filters?

It can be divided into color photography filter, black-and-white photography filter and black-and-white color universal filter.

Different colors of various color filters are composed of different pigments. The density of the same pigment is different, and the depth of the same color is also different. According to different pigments, commonly used color filters can be divided into yellow, yellow-green, orange, red, green and blue. According to different pigment densities, each color filter has a different hue. Usually Arabic numerals are used to calibrate the pigment density of the filter, that is, the number of the filter.

Different color filters have different transmission rates for various colors of light. The color filters of the same color have different shades, and the absorption and passing degree of colored light are also different. Dark colors absorb more and pass less, while light colors absorb less and pass more.

Second, what is the function of color filter?

The color filter plays the role of passing, limiting and preventing all kinds of light. Reflected on the photosensitive film, you can see which colors of light are not blocked or restricted by the filter, and there are more exposures on the film, which will appear brighter after being made into photos. What light is limited or blocked by the filter can be found on the photosensitive film with little or no sensitivity. It is precisely because of this characteristic that the filter has become a very suitable and effective tool for photographers to shoot tone transitions in some special light environments.