when film is exposed at an ASA setting higher than is recommended, the processing must be "pushed" or increased to get proper visual results.
This is where you deliberately underexpose and overdevelop your film. By doing this, you add contrast and expand the tonal range of a photo in a scene that lacks these qualities. The usual procedure is to underexpose by one f-stop and then add half again to your film development time to compensate or underexpose by two f-stops and double the development time.
A way of processing film by extending developing time so that the film operates at maximum sensitivity. Useful for obtaining images from low light situations. See Uprating. Go to top
Increasing the development time of a film to increase its effective speed (raising the ISO number for initial exposure ) for low-light situations; forced development.
The technique of over developing film to compensate for intentional underexposure by the photographer. Commonly used to gain faster shutter speeds or greater depth of field than normally exposed and processed film will permit.
Pushing is the reverse of pulling. Instead of over-exposing the negative you under-expose it. This would be done when you need a faster film than you have. For example, the light is too dim, the glass is too slow, or you need a faster shutter speed. You over-expose the film by selecting a higher ISO speed on the camera's film speed selector. At development time the under-exposure is compensated for by over-developing the negative. This is done by increasing development time and or process temperature. Instead of the negative being very thin, this pulls every little bit of light out of the emulsion, and you will have something instead of nothing. If you are using roll film, typically you are stuck pushing or pulling the entire roll, instead of individual LF negatives. With modern color print film you can often do pull or push processing at printing time by printing darker or lighter. This is due to the wide exposure latitude of modern C-41 process films.
increasing the development time of a film to increase its effective speed. See Pushing.
Push processing is a term from photography, referring to a development technique that increases the speed of the film being processed. Push processing is the opposite of pull processing, which is a similar technique designed to decrease the speed of the processed film.
