Original sentence: <ref="Langford" /> Saturated and distorted colours are often visible on film that has been push processed.Pull processing involves over-exposure and under-development, effectively decreasing the sensitivity of the processed film.Push processing allows relatively insensitive films to be used under lighting conditions that would ordinarily be too low for adequate exposure at the required shutter speed and aperture combination.Push processing in photography, sometimes called uprating, refers to a film developing technique that increases the effective sensitivity of the film being processed.This technique alters the visual characteristics of the film, such as higher contrast, increased grain and lower resolution.This technique results in effective over-development of the film, compensating for under-exposure in the camera
Edited sentence: Also, to underexpose a film a deliberately with the intention of attempting compensation in development.In contrast, pull processing involves over-exposure and under-development, effectively decreasing the sensitivity of the processed film.It is described by Phil Davies as; "To prolong the time of film development in an effort to compensate for underexposure.Push processing allows relatively insensitive films to be used under lighting conditions that would ordinarily be too low for adequate exposure at the required shutter speed.Push processing in photography refers to a film developing technique that increases the effective sensitivity of the film being processed.Pushing results in a change in the visual characteristics of a given film stock, which can be perceived as decreased quality: artifacts such as higher contrast, increased grain, lower resolution, as well as saturated and distorted colours are often visible on film that has been push processed.This technique results in over-development of the film, compensating for under-exposure in the camera.by Phil Davis/ fifth Edition ISBN 0-697-00300-0.pg 373