What are the steps in the film processing?
Film is four main steps: development, stopping, repair, washing and drying. Special equipment, including tank development, timers and chemicals of photographs, is required to process the film in this way. Both black and white and color film can be developed by hand; Both processes are very similar, although the processing of color images involves the use of different chemicals.
The first step in film processing is the real development of the film. First, a special development agent is poured into the tank, followed by immersion of a film in a chemical reagent. The agent supports the release of electrons that transform grains of the silver silver silver to metal silver. During this step, the thermometer is used to ensure that the correct temperature is maintained throughout the process. This ensures that the film does not exceed, which threatens the integrity of the captured image by being too granular. A chemical mixture known as a bathroom is used. The film is located in a stalk bath where it dilutes the evolving agent.
thirdA step in the processing of the film is called fixation. During this procedure, the chemicals known as the fastening bath of non -existent non -existing halogenide crystals on the film. Chemical solution does not affect metal silver; It only works on halogenide and erades it from developing photos.
The immersion of the film in clean water will further remove all evolving chemicals. This ensures that no white spots appear on film negatives. After washing the film in a pan with water for approximately five minutes, the film is hung on dry.
The drying process usually takes one to two hours. Once it dries, the film can be easier to display and photos can be more easily selected for magnification. Once the drying is completed and the pictures have been selected, the negatives are then stored in the appropriate packaging, usually clear envelopes or polyvinyl chloride (PVC).
black and white and color film is developed in this general metoDěh. However, chemicals that respond to film differently than their black and white counterparts are used in the development of color. As the film processing method proceeds, the color slowly appears on the film. When it is dry and ready for viewing, chemicals prepared pictures in color format.