Aperture: Lens opening controlling the amount.
Aperture Priority(AV): Semi-automatic camera setting: photographer chooses an aperture and camera chooses the appropriate shutter speed to make a good exposure.
Auto Focus: Automatic focusing system.
Bit: Short for binary digit, the basic unit of binary language.
Bit depth: Number of bits(memory) assigned to recording color or tonal information.
CCD: Charge Coupled Device which is a solid state sensor used in digital image capture, i.e., most Nikon cameras have CCD sensors.
CMOS: Another type of image sensor used in digital cameras.(Canons)
Diffuse: Dispersion of light(spread out) not focused.
F-stop: Numerical system indicating aperture diameter.(F 2.8, F 3.5, F 22)
Fast Lens: Lens where the widest aperture setting is very wide, i.e. F 1.4. It will allow you to obtain good exposures in very low light or at very high shutter speeds.
Flash light: Mobile 5800k light source, high intensity, short duration.
ISO: Stands for "International Standers Organization", a standardized number rating the sensitivity of a film to light.( ISO 100- ISO 10200)
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