When the film is unexposed, there is no image.
When the film has been exposed, there is a potential image hidden in the
chemical changes light has caused. It is called a latent image.
When the film has been developed, there is a real image.
A real image is more chemically stable than unexposed film which is more
stable than is exposed film.
Moose
Daniel Mitchell wrote:
On a technical note, the latent image on exposed film doesn't last as
long as unexposed film.
I'm confused -- what do you mean by "latent image" here? Surely there is no
image on unexposed film (or is that the joke, and I'm just not getting it)?
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