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K (Kelvin)
Abbreviation for Kelvin temperature, the measurement of the redness or blueness of white light. This is written without the degree sign. Daylight at noon, for example, has a Kelvin temperature of about 5500K, while photographic tungsten lamps are 3200K. Technically it is a measurement of the colour of white or gray based on the temperature to which a black body must be heated to produce that colour of white.
K 14
Kodak's chemical process for developing Kodachrome slides.
KB
Can be used to mean either a keyboard for a computer or more commonly "KB" means a kilobyte of data.
Kernel size
The number of pixels sampled as a unit during image manipulation and sharpening processes.
Kerning
Tightening the space between letters.
Key light
A studio light used to control the tonal level of the main area of the subject.
Keystoning
The distortion of a projected slide or movie caused by the projector lens axis not being at a 90 degree angle to the screen. The image will appear wider at one edge than on the opposite and the image will not be uniformly sharp.
Kilobyte
An amount of computer memory, disk space, or document size consisting of approximately one thousand bytes. Actual value is 1024 bytes.
Kodak PhotoCD
A CD-ROM containing digital images; the CD is created with technology developed by Kodak; each scanned image on the disk is available in five sizes; about 1000 images will fit on a single PhotoCD.