In photography, push printing and push developing refer to a process where a picture is printed as if it were a film speed higher than intended by the film manufacturer. For instance, a photo which is metered one f-stop under can be pushed a stop to compensate either in developing or in printing. In push processing(also known as push processing), the developer changes the development time or temperature to increase contrast. By leaving the film in the developer longer the highlights increase in silver density. When doing this, the entire roll must be pushed; pushing a roll during developing gives better results than pushing it in printing, but the entire roll must be metered "off" the same amount. That is, if one picture is -1; they must all be -1. Push developing a film can not be undone. Photos may also be pushed in printing. The paper is exposed more (through aperture or time) but the development time stays the same; as a result, the photo is lightened so that more detail is visible. This process affects the print and not the negative and so can be tried to different degrees. Side effects may be that colors are weakened, contrast may be over-emphasized, and considerable grain may be added to the image. Push printing is not suitable for all types of film. Push printing is sometimes done without the photographer's knowledge or permission, especially on newer automated systems which prompt the developer about potential "problem" photos. In the example to the right, one picture on an ISO 400 roll was pushed four stops. The image shows two photos of a woman in a car: the top one was metered according to the ''average'' light within the full image frame. As a result of the bright light in the background, her face was left in silhouette. The developer pushed the photo four stops to compensate, bringing out the features of the subject's face. In this case, the photographer returned with the film to have it reprinted the way he intended. See also: pull printing Photographic techniques
In reality, the article confuses two types of "push": *Push developing (where the film is "pushed" from ISO 400 to ISO 800 by leaving it in the developer bath for a longer time) *Push printing, which is what the (excellent) example image show: The same process performed on the photo paper. Push developing gives the best results, but may have problems with grain. It also increases contrast. Push printing will not have grain, but has less potential for "push". When prints are made manually (not by a machine), "push" development is performed as a matter of course. -- User:Egil 08:09 Jan 30, 2003 (UTC) :Ouch. I should stop with the photo articles then. Can you help correct the article? User:Koyaanis Qatsi
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Words begining with Push_printing:
Push_printing
Push_printing
Push printing
In photography, push printing and push developing refer to a process where a picture is printed as if it were a film speed higher than intended by the film manufacturer. For instance, a photo which is metered one f-stop under can be pushed a stop to compensate either in developing or in printing. In push processing(also known as push processing), the developer changes the development time or temperature to increase contrast. By leaving the film in the developer longer the highlights increase in silver density. When doing this, the entire roll must be pushed; pushing a roll during developing gives better results than pushing it in printing, but the entire roll must be metered "off" the same amount. That is, if one picture is -1; they must all be -1. Push developing a film can not be undone. Photos may also be pushed in printing. The paper is exposed more (through aperture or time) but the development time stays the same; as a result, the photo is lightened so that more detail is visible. This process affects the print and not the negative and so can be tried to different degrees. Side effects may be that colors are weakened, contrast may be over-emphasized, and considerable grain may be added to the image. Push printing is not suitable for all types of film. Push printing is sometimes done without the photographer's knowledge or permission, especially on newer automated systems which prompt the developer about potential "problem" photos. In the example to the right, one picture on an ISO 400 roll was pushed four stops. The image shows two photos of a woman in a car: the top one was metered according to the ''average'' light within the full image frame. As a result of the bright light in the background, her face was left in silhouette. The developer pushed the photo four stops to compensate, bringing out the features of the subject's face. In this case, the photographer returned with the film to have it reprinted the way he intended. See also: pull printing Photographic techniques
Push printing
In reality, the article confuses two types of "push": *Push developing (where the film is "pushed" from ISO 400 to ISO 800 by leaving it in the developer bath for a longer time) *Push printing, which is what the (excellent) example image show: The same process performed on the photo paper. Push developing gives the best results, but may have problems with grain. It also increases contrast. Push printing will not have grain, but has less potential for "push". When prints are made manually (not by a machine), "push" development is performed as a matter of course. -- User:Egil 08:09 Jan 30, 2003 (UTC) :Ouch. I should stop with the photo articles then. Can you help correct the article? User:Koyaanis Qatsi
See other meanings of words starting from letter:
P
PA | PB | PC | PD | PE | PF | PG | PH | PI | PJ | PK | PL | PM | PN | PO | PR | PS | PT | PU | PW | PX | PY | PZ |Words begining with Push_printing:
Push_printing
Push_printing
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