Recently, new film emulsions in the ISO 50 to ISO 100 range have been released. They are very fine grained, but are also extremely color saturated. This means the colors are bright and vivid, but not necessarily accurate. Fixer is also called hypo. In most cases, the diaphragm is iris shaped.
All films are gelatin based.
Gelatin is used to bind the emulsion to the plastic film base. This technology has been available for more than a century. Large format Generally any film format in which negatives are larger than 4 x 5 inches is considered large format. Most large format cameras are view cameras, field cameras, or specialty cameras. Medium format Any camera that uses 120 size roll film is considered to be medium format.