Black and white film of full color film

The color sensitivity of black and white film is mainly divided into three basic types: panchromatic film, orthochromatic film, and infrared film. The sensitivity of panchromatic films to all visible light is roughly the same as the sensitivity of the human eye to them. It is also the most commonly used black and white film for ordinary photography. Basically, panchromatic films are sold in stores. Panchromatic films are generally referred to as "panchromatic films". PAN" film is marked on most film packages. Panchromatic film is a type of black and white film. It means that the photosensitive range of the black and white film is the full color spectrum of the film. It can detect all the visible light we see.

Full-color film, such as from red light to blue light: red, orange, yellow, green, blue, blue and purple. The film image appears as black and white and multi-level gray. In addition to full-color films, black-and-white films also have many special-purpose films, such as infrared films, X-ray films, etc. These films are only sensitive to a part of the light spectrum. Some people also call this black-and-white film color-blind film.