Automatic Flash - An electronic flash unit that reads lights reflected off a subject (from either a preflash or the actual flash exposure), then shuts itself off as soon as ample light has reached the sensitized medium.
Aperture - The opening in the lens that allows light to enter the camera. Aperture is usually described as an f/number. The higher the f/number, the smaller the aperture, and the lower the f/number the larger the aperture.
Aperture Priority - A type of automatic exposure in which you manually select the aperture and the camera automatically selects the shutter speed.
Artificial Light - Usually refers to any light source that doesn't exist in nature such as incadescent, flourescent, and other manufactured lightning.
Available Light - The amount of illumination at a given location that applies to natural and artificial light sources but not those supplies specifically for photography. It is also called existing light or ambient light.
Backlight - Light that projects toward the camera from behind the subject.
Bit/Byte - Binary digit. This is the basic unit of binary computation, while Byte is eight bits.
Bounce Light - Light that reflects off of another surface before illuminating the object.
Bulb - A camera setting that allows the shutter to stay open as long as the shutter release is depressed.
Card Reader - Device that connects to your computer and enables quick and easy download of images from memory card to computer.
Close-Up - A general term used to describe an image created by closely focusing on a subject. Often involves the use of of special lenses or extension tubes. Also, an automated exposure setting the that automatically selects a large aperture (not available with all cameras)
Compression - Method of reducing file size through removal of redundant data, as with the JPEG file format.
Contrast - The difference between two or more tones in terms of luminance, density, or darkness.
CPU - Central Processing Unit. This is the "brains" of a computer or a lens.
Cropping - The process of extracting a portion of the image area. If this portion of the image is enlarged, resolution is subsequently lowered.
Daylight - A white balance setting that renders accurate color when shooting mid-day sunlight.
Depth of Field - The image space in front of and behind the plane of focus that appears acceptably sharp in the photograph.
Download - The transfer of data from one device to another such as from camera to computer or computer to printer.
DPI - Dots per inch, referring to printing resolution.
Exposure - When light enters the camera and reacts with the sensitize medium. The term can also refer to the amount of light that strikes the light sensitive medium.
Bit/Byte - Binary digit. This is the basic unit of binary computation, while Byte is eight bits.
Bounce Light - Light that reflects off of another surface before illuminating the object.
Bulb - A camera setting that allows the shutter to stay open as long as the shutter release is depressed.
Card Reader - Device that connects to your computer and enables quick and easy download of images from memory card to computer.
Close-Up - A general term used to describe an image created by closely focusing on a subject. Often involves the use of of special lenses or extension tubes. Also, an automated exposure setting the that automatically selects a large aperture (not available with all cameras)
Compression - Method of reducing file size through removal of redundant data, as with the JPEG file format.
Contrast - The difference between two or more tones in terms of luminance, density, or darkness.
CPU - Central Processing Unit. This is the "brains" of a computer or a lens.
Cropping - The process of extracting a portion of the image area. If this portion of the image is enlarged, resolution is subsequently lowered.
Daylight - A white balance setting that renders accurate color when shooting mid-day sunlight.
Depth of Field - The image space in front of and behind the plane of focus that appears acceptably sharp in the photograph.
Download - The transfer of data from one device to another such as from camera to computer or computer to printer.
DPI - Dots per inch, referring to printing resolution.
Exposure - When light enters the camera and reacts with the sensitize medium. The term can also refer to the amount of light that strikes the light sensitive medium.
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