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49 Cards in this Set
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Allows you to specify the f-stop you want, camera auto selects shutter speed
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Aperture Preferred
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Camera auto chooses correct focus distance for you, usually based on contrast of image or infrared sensor
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Auto Focus
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Light-measuring device that calculates exposure based on brightness of entire image
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Averaging meter
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The Tonal Level of an image where blacks begin to provide important image information, usually measured by using a histogram
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black point
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To soften an image of part of an image by throwing it out of focus, or by camera motion
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Blur
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taking a series of photographs of the same subject at different settings to help ensure that one setting will be the correct one
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Bracketing
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process used to correct for the differences in the output of a printer r monitor when compared to the original one
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Calibration
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(a darkroom technique) involves exposing part of a print for a longer period, making it darker than it would be with a straight exposure
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Burn
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Movement of the camera, aggravated by slower shutter speeds, causing image blur
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Camera shake
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light measuring device that emphasizes the area in the middle of the frame when calculating the correct exposure for an image
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Center weighted meter
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an image defect, often seen as green or purple fringing around the edges of an object, caused by a lens failing to focus on all colors of a light source at the same pt
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Chromatic aberration
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changing the amounts of color in an image to produce desired effect
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Color correction
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reducing the size of a file by encoding using fewer bits of info to represent the original
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Compression
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range between lightest and darkest tones in an image
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Contrast
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to trim an image or page by adjusting its boundaries
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Crop
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distance range in a photograph in which all included portions of an image are at least acceptably sharp
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Depth of field
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range that the image capturing surface could be moved while maintaining acceptable focus
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Depth of focus
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to reduce purity or vividness of a color
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Desaturate
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soft, low-contrast lighting
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Diffuse lighting
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darkroom term for blocking part of an image as it is exposed, lightening its tones.
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Dodging
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light-sensitive coating on a piece of film, paper, or printing plate. (one side of photo paper is emulsion side
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Emulsion
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amount of light allowed to reach the film or sensor, determined by intensity of the light, amount admitted by the lens, and length of time determined by shutter speed
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Exposure
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automatic setting in digi cam that provides the optimum combo of shutter speed and f-stop at a given level of illumination. (sports, portrait, …)
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Exposure program
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In photography, lighting used to illuminate shadows
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Fill lighting
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distance between the film and the optical center of the lens when the lens is focused on infinity,
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Focal length
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camera feature that lets you freeze the auto focus of the lens at a certain pt, when the subject you want to capture is in sharp focus
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Focus lock
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relative size of the lens aperature (which helps determine exposure and depth of field. The larger the number, the smaller the f-stop
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f-stop
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the brightest parts of an image containing detail
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highlights
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pt of focus where everything from half that distance to infinity appears to be acceptably sharp.
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hyperfocal distance
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light falling on a surface
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incident light
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technique used to create new pixels required whenever you resize or change the resolution of an image, based on values of surrounding pixels
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interpolation
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a file format that supports 24-bit color and reduces file sizes by selectively discarding image data
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jpeg
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lens opening or iris that admits light to the film or sensor
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lens aperture
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a lens that provides continuous focusing, from infinity to extreme close ups, often to a reproduction ratio of 1:2 or 1:1 (half life size or life size)
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macro lens
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exposure metering system using a multi-segment sensor and programming so various parts of a scene can be emphasized when calculating the correct exposure
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matrix metering system
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representation of an image in which the tons are reversed: blacks as white, and vice versa.
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negative
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condition in which too much light reaches the film or sensor, producing a dense negative or a very bright/light print, slide, or digital image
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over exposure
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Moving the camera so that the image of a moving object remains in the same relative position in the viewfinder as you take a picture
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panning
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smallest element of a screen display that can be assigned a color
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pixel
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image file format including all the unprocessed info captured by the camera
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raw
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number of pixels per inch, used to determine the size of the image when printed
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resolution
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device that captures an image of a piece of artwork and converts it to a digitized image or bitmap that the comp can handle
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scanner
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increasing the apparent sharpness of an image by boosting the contrast between adjacent pixels that form an edge
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sharpening
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exposure mode in which you set the shutter speed, and based on that info, the camera determines the appropriate f-stop
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shutter preferred
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type of camera that allows you to see through the camera’s lens as you look in the camera’s viewfinder
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single lens reflex(SLR)
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lens or lens setting that magnifies an image
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Telephoto
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condition in which too little light reaches the film or sensor, producing a thin negative, a dark slide, a muddy-looking print, or dark digital image
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under exposure
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process for increasing the contrast between adjacent pixels in an image, increasing sharpness, especially around edges
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unsharp masking
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to enlarge or reduce the size of an image on your monitor/enlarge or reduce size of image using magnification settings of a lens
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zoom
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