Pushing and Pulling Film.

Pushing Film means rating the film speed (or iso) higher than the film is designed for. An iso 100 film for instance, can be rated at 200 or even 400. By setting iso 100 to iso 200 is PUSHING the film one stop. The opposite of pushing is of course pulling. Pulling means rating the film slower than its normal speed, this can be used to reduce contrast. Pushing and Pulling film can give you grainy photos, it may also require the film to be processed at a commercial lab. For more information about processing a pushed or pulled film, take it to your nearest Pro Photo lab (not supermarket processing counters) and ask them if they are able to develop film that has been pushed / pulled.