Film processing is the process of transforming a latent image in photographic film and paper to a negative or positive. It also makes the images permanent and renders them insensitive to light.
What is meant by film processing?
First, the film is dipped in a developing solution that is actually a reducing agent. When this is done, the silver ions in the grains are converted to pure silver. This is done with the correct temperature, time and agitation.
Next, a stop bath is used to halt the development. It typically consists of a dilute solution of acetic acid or citric acid. This halts the film’s further development.
Finally, a fixer is used to remove the unexposed silver halide crystals in the film. This dissolves only the crystals and does not leave the silver metal behind.
Whether you’re a beginner or a pro, knowing how to develop film can help you save money and gain control over the results of your photographs.
The equipment you need for film development includes a developing tank, reels and all the chemistry required to complete the process. It’s also a good idea to have graduated vessels to measure the right amount of chemistry.
Once you have all this, it’s time to get started! Just remember to follow the proper dilutions, never mix fixer with developer (don’t make a dilution that isn’t labeled for your specific film and developer) and never cross-process.
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