Traditional Culture Encyclopedia - Photography and portraiture - The photo of actor Liao's immortal film is exposed. What are the skills to take this photo?

The photo of actor Liao's immortal film is exposed. What are the skills to take this photo?

? Liao Yinyue, actress. On March 2019 13, the TV series "Falling in Love with the Big Dipper Boyfriend" was broadcast, in which Jia Han was played. On August 18, 2020, the TV series "Extraordinary Witness" was scheduled to be broadcast by iQiyi, playing the role of little white dove in the play.

? 1, membrane structure

? (1) emulsion: made of photosensitive silver halide particles suspended in gelatin medium.

(2) Film base: the support of emulsion, and the photosensitive film is formed by coating emulsion on its surface. Silver plate, iron plate, glass sheet, cellulose acetate resin.

2. Principles

The principle of color film:

Two facts: conventional color film? Do you see it? The color is very similar to what the human eye sees; All traditional color films still rely on silver halide to form black and white images during exposure and development.

Color film has three color sensitive coatings: blue sensitive layer, green sensitive layer and red sensitive layer, and each layer contains coupler.

Imaging: after each photosensitive layer is sensitized, it is converted into black metallic silver particles, and then, according to the amount of silver halide converted into metallic silver, the coupler is accurately converted into chromogenic dye.

Tip: Rainy days can also create sunshine. Using warm light to shoot from the rear can make photos look like sunlight shining into the picture, which solves the problem of insufficient film sensitivity. If you want to shoot the effect of light leakage, you can quickly open a small gap in the film cassette and then quickly close it, so that the light leakage just occupies a small part of the photo. Many films are expired films, mainly for use, but the film is Kodak 5207 and iso is 250. If it is a film of that year, the iso of the film roll can be set to 250. If it is an expired film roll, it should be reminded that some films can set the iso manually, while others cannot. In addition, cloudy days and backlight shooting can increase exposure compensation and make colors look better.