Latent image

The Latent image.
It is not fully understood exactly what happens during exposure but the energy released when a photon of light strikes a silver halide crystal frees an electron from the bromide ion.

Latent Image
The invisible image left by the action of light on photographic film or paper. The light changes the photosensitive salts to varying degrees depending on the amount of light striking them.

Latent image
An image formed by the changes to the silver halide grains in photographic emulsion on exposure to light. The image is not visible until chemical development takes place.

LATENT IMAGE - Image recorded on film that is made visible by development.

latent image
invisible image on exposed film that has not been developed.
lateral reversal
left to right or mirror image reversal.

Latent image - image recorded by light remaining invisible until developed
Load - insert film into camera or tank ...

Latent image. The invisible image contained by the photographic material after exposure but before development. Stored protected from light, damp and chemical fumes, a latent image can persist for years.

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Latent image - invisible image produced by exposure which can be made visible by development.
Lateral reversal - mirror image reversal of the subject from left to right, as found in the viewfinders of some reflex cameras.

It is believed that latent image formation involves both the migration of silver ions within the grain and the trapping of photoelectrons.

This produces a visible image from the invisible latent image. Development is usually carried out by bringing the exposed film into contact with a solution that contains a developing agent, but no silver salt.

It preserves the latent image keeping properties of the film for one thing, and it also keeps the film from suffering from heat damage.

The developer, which turns the latent image to metallic silver.
A stop bath, which stops the action of developer, typically a dilute solution of acetic acid.

Film speed is determined by the minimum exposure required to change the silver in the film emulsion to a latent image. This minimum exposure is the threshold, exceed it and the film is exposed.

This forms a visible image from the latent image. The latent image is what is recorded on the film or paper when it was exposed. In a sense it is the possibility of an imge. The developer makes that possibility a reality.

You need some way by which you can unload the film, expose it to the developing solution, which can develop the latent image i.e., take the excited particles and get them to deposit metallic silver.

The method of underrating the normal ISO speed of a film to produce an overexposed latent image.
Pushing:
The method of overrating the normal ISO speed of a film to produce an underexposed latent image. Used to increase the working speed of a film.

Developer A solution used to turn the latent image into a visible image on exposed films or photographic papers.
Developing Tank A lighttight container used for processing film.

It can be likened to the digital equivalent of a latent image but with the ability to be infinitely reprocessed or developed. In most cases, cameras write raw files using a proprietary file format.

Dev. (Developer)
A Chemical bath which converts exposed silver halides to black metallic silver, so making the latent image on exposed films or photographic papers visible.
(see Latent image) ...

Pushing
A method of overrating the normal ISO speed of a film to produce an underexposed latent image. Used to increase the working speed of a film.
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On exposure to light the electrical charge is destroyed, leaving a latent image in which shadows are represented by charged areas. A powdered pigment dusted over the plate is attracted to the charged areas, producing a visible image.

Because pure asphalt hardens when exposed to the sun, the plate would have a latent image when removed from the camera. The “bright' areas of the outside scene would be hard, while the dark parts of the scene would remain soft.

When a picture is taken, light (hopefully focused light) falls on the film in an amount determined by the lens aperture and camera's shutter duration. The result is a latent image, and when the film is immersed in a developer, ...

See also: Image, Light, Film, Photograph, Photography