Electrophotography is the creation of images by alteration to the electrical properties of the sensitive material as a result of the action of light. Element is a single lens shaped piece of glass that forms part of a compound lens system. Elon is another term for Methylaminophenol sulfate. It is more commonly known as metol. Emerson, Peter Henry 1856-1936.
Emulsion is a light sensitive material which consists of a suspension of silver halides in gelatin.
Emulsion side is the side of the film coated with emulsion. Endoscope is an optical device allowing the viewing and photography of small inaccessible subjects. Enhanced back printing in an Advanced Photo System feature available in some cameras that enables users to encode detailed information at the time of picture-taking. Enlargement is a term used to describe a print larger than the negative used to produce it. Enlarger is an apparatus for producing prints by projecting a negative or transparency on sensitive paper.