Editing Bleach bypass (section)

== Technique ==
Bleach bypass can be done to any photochemical step in the process, be it [[original camera negative]], [[interpositive]], [[internegative]] or [[release print]]. For motion pictures, it is usually applied at the internegative stage, as insurance companies usually are reluctant to have the camera negative bleach bypassed, or the interpositive (a "protection"/"preservation" element), in the event that the look is agreed to be too extreme, and the cost of the process for each individual release print is most often cost-prohibitive. The effect, however, will render slightly differently at each stage, especially between the camera negative and interpositive stages.

Bleach bypass generally refers to a complete circumvention of the bleach stage of development, and is the most commonly offered service among laboratories. [[Technicolor]]'s '''ENR''' and '''OZ''' and [[Deluxe Entertainment Services Group|Deluxe Labs]]' '''ACE''' and '''CCE''' processes are proprietary variants which allow the film to be only partially bleached, giving the [[cinematographer]] a more finely tuned control over the effect rendered by the process.

While originally a laboratory technique, a similar effect can also be achieved digitally through [[digital intermediate]] [[color grading]].