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Canon is a leading provider of consumer, business-to-business, and industrial digital imaging solutions.
Also Known As: F/Number, F-Stop, Effect Aperture, Relative Aperture. A measure of the width of the opening allowing light to enter a camera. The apparent diameter of a lens viewed from the position of the object against a diffusely illuminated background is called the "effect aperture". The ratio of focal length of a lens to its "effective aperture" for an object located at infinity is called the "relative aperture", or "f/number". Larger apertures allow more light to enter a camera, hence darker scenes can be recorded. Conversely, smaller apertures allow less light to enter, but have the advantage of creating a large depth of field. See also shutter speed.
Industry:Entertainment
A bit, which stands for binary digit, is the smallest unit of digital information. Eight bits equals one byte. Digital images are often described by the number of bits used to represent each pixel. i.e. a 1-bit image is monochrome; an 8-bit image supports 256 colours or grayscales; while 24 or 32-bit supports true colour.
Industry:Consumer electronics
A bit, which stands for binary digit, is the smallest unit of digital information. Eight bits equals one byte. Digital images are often described by the number of bits used to represent each pixel. i.e. a 1-bit image is monochrome; an 8-bit image supports 256 colours or grayscales; while 24 or 32-bit supports true colour.
Industry:Consumer electronics
Joint Photographic Experts Group, *.jpg. The de facto standard for image compression in digital imaging devices. JPEG is a lossy compression technique, capable of reducing digital images files to about 5% of their normal size. This is one of the reasons you can get as many images into your PowerShot digital camera as you can. The results in decompression of the files can cause "blockiness," the " jaggies," or "pixelization" in certain digital images. The greater the compression level the more pixelization or "blockiness" that will occur. The greater the pixel count, the less pixelization that may occur.
Industry:Consumer electronics
An electronic device that produces a burst of light the consumer can use to produce more exposure on the film.
Industry:Consumer electronics
Joint Photographic Experts Group, *.jpg. The de facto standard for image compression in digital imaging devices. JPEG is a lossy compression technique, capable of reducing digital images files to about 5% of their normal size. This is one of the reasons you can get as many images into your PowerShot digital camera as you can. The results in decompression of the files can cause "blockiness," the " jaggies," or "pixelization" in certain digital images. The greater the compression level the more pixelization or "blockiness" that will occur. The greater the pixel count, the less pixelization that may occur.
Industry:Consumer electronics
Liquid crystal display. The flat screen on many digital cameras that preview photographs that have already been taken. LCDs utilize two sheets of polarizing material with a liquid crystal solution between them. An electric current passed through the liquid causes the crystals to align so that light cannot pass through them. Each crystal, therefore, is like a shutter, either allowing light to pass through or blocking the light.
Industry:Consumer electronics
1024 Kilobytes, written MB, used to refer to the size of files or media such as hard drives. Refers to the amount of information in a file or how much information can be contained on a hard drive or disk.
Industry:Consumer electronics
