35mm equivalency - What a digital lens would be equivalent to in terms of a 35mm film SLR camera. Used as a standard for discussing the field of view and magnification power of a lens. In 35mm equivalency, lenses over 50mm are telephoto, whereas lenses below 50mm are wide-angle or fisheye lens. In a digital SLR, a mirror placed in front of the focal plane (where the image sensor sits) bounces the light that comes from the lens upward into a prism and then out the eyepiece. When you press the shutter button, the mirror flips up out of the way so the light can pass to the focal plane.
ROM (Read-Only Memory) - A memory type that cannot be changed or rewritten, and will not lose information when a computer is shut down.
Bus - A data pathway used within a computer system to transfer information within the system.
Calibration - A process of setting digital imaging components to standardized settings that will produce accurate and predictable results in the output.
PPI (Pixels Per Inch) - Often used interchangeably with DPI, PPI refers to the number of pixels per inch in an image.
Rasterization - Changing vector type image information to raster image information.
Data - The numbers that make up a digital file.
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