A smooth transition between black and white, one color and another, color and no color. Gray Level

Camera Image File Format, an agreed method of digicam image storage used by many camera makers. CMOS

Enhanced Parallel Port - the newer hi-speed, bidirectional printer port on modern computers. Some older digicams and scanners use the EPP port to transfer data. ERI-JPEG

Sony's term for IEE-1394 FireWire data port found on their camcorders. Image Processing

Motion JPEG movie file. See "Movie clip" The digital video compression standard agreed upon by the Motion Picture Expert Group, from the motion picture-computer industry. MPEG-2 is used by most camcorders and MPEG-4 with a higher compression ratio is popular with digital cameras that offer motion video recording. MPEG-EX

Denotes the focal length ratio of a zoom lens - this is an optical, not digital zoom. See also "Digital Zoom" below. A/D Converter

In the digicam world this refers to the most common power source, the AA-size battery. See also "NiCd" and "NiMH" and check here: NiMH Batteries/Chargers AA Filter

Running your digicam off the wall outlet power rather than by battery power. Usually means purchasing optional AC power adapter. Add-On Lens

Auto Exposure, a system for automatically setting the proper exposure according to the existing light conditions. The most common types of AE systems: Programmed

The ability to hold the current exposure settings and allow you to point the camera elsewhere before capturing the image. This is usually accomplished by half-pressing the shutter button and keeping it at that position until you're ready to capture the image. AF