EIS stands for Electronic Image Stabilizer. A feature that minimizes effect of camera shake. Electroluminescence is the conversion of electric energy directly into visible light. Electronic flash is artificial lighting produced by an electronic discharge in a gas filled tube. A single tube can produce a large number of flashes.
Electronic shutter is a shutter system timed by electronic rather than mechanical means.
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.