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What will happen if an unexposed film is first developed then fixed then washed?
Wiki User
∙ 10y ago
Short Answer: You will end up with a roll of clear film.
I am sorry to admit that I have had this experience.
Photographic film is sensitive to light. Lenses on cameras focus that light onto a flat, light-sensitive film and create a latent image. In development, the areas exposed to light are changed by a chemical process and become "hardened" onto the film. The next step is a "stop both" that stops the chemical reactions - it is usually a light acetic acid solution. This is followed by a fixative solution which removes the non-exposed areas of the film's emulsion. A final step is a "washing" bath with clear water to remove all traces of chemicals. The resulting image is a negative of the scene photographed.
It is negative, because the areas that received the most light will now have the most dark grains of emulsion that have been hardened in the first chemical bath (the developer). The rest is washed away by the fixer (whic "fixes" the image). So, image areas are black, and non-image areas are clear.
This negative is then used to block light that is used to expose a second piece of light sensitive material (e.g. photographic paper). A similar process to film development is used to reveal the latent image on the photographic paper. (e.g. several chemical baths done in sequence)
These secondary exposures can be done with the negative in direct contact with the photo paper (making an image the same size as the film), or enlarged through a light source that uses a lens to make the image bigger. Very large enlargements will reveal the grain of the original image on the film. That is why big enlargements look grainy.
So if you develop unexposed film, nothing will develop and everything will be removed by the fixer. You will have clear film. This is a mistake you do not want to experience, because you will feel you have wasted your time or your money.
Wiki User
∙ 10y ago
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