Austin Franklin wrote: >>Very simply, grain, or dye clouds are predetermined in their location >>and shape and are not relocated by picture content. >> > > What about development? >
I could just answer this with an "Austinism" and say "what about it?", but I'll afford you a little more respect than you hand out. Development obviously is where dye clouds are created from the photon activated silver grains. Depending if the film is a positive or negative type, those grains activated by photons either are used to create dye clouds or to be areas where dye clouds are ultimately removed via a bleaching process in creating the final processed film. Also, some developing techniques can somewhat alter the shape or size of the dye clouds, as the grain edges can be "eaten away" or softened by some developers or the dye cloud could be enlarged during the chemical reaction which creates it, and development could also theoretically alter what level of grain "activation" will develop into dye clouds by change of chemical concentration, temperature of the baths and timing. However, most of this type of thing is done in custom film development of black and white film, because the need to control so many other variables within color film development doesn't allow for much playing around. Most color film processing is fairly uniform in its method, assuming it is being done correctly (unfortunately, it often isn't controlled as well as it should be, which is evident by the number of people dealing with poor color processing). This is why almost all color film is souped in one of two basic color chemistry types (C-41 or E-6). It is true that some of the above mentioned grain alterations also occur during pushing of color films, but usually the intent of these processes is to extend film sensitivity more than to increase grain, for instance. Some photographers do pull some color films, which creates an apparent slower film and might reduce grain size in some cases. However, I know of no color development technique that is capable of moving film grain or dye clouds within the emulsion so that they can line up the grain as a result of the image content. If you do, I'd like to here about it. Art Austin Franklin wrote: >>Very simply, grain, or dye clouds are predetermined in their location >>and shape and are not relocated by picture content. >> > > What about development? > > . > >
