EN: Matrix array
Fotografie digitala si IT
The grid of sensors on a CCD that is used to capture an image in a digital camera.
An exposure meter that measures light in several areas of a scene and analyzes the measurements to determine proper exposure. Also called a Multi-segment meter .
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The mold used to cast a letter of type in hot-metal composition. pl. matrices.
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Autoexposure metering where the camera sets both aperture and shutter speed according to data stored in the camera s built-in memory, comparing the scene to be photographed to reference scenes.
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CCD s that can capture full-color images instantaneously. .
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Matrix balanced fill-flash
Nikon s through-the-lens (TTL) automatic fill-flash system using Nikon s Matrix Metering system.
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Most digicams have a matrix metering option which uses 256 areas of the frame to calculate the best overall exposure value.
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A metering method which uses the entire image; however, it breaks the area down into smaller segments and uses the individual readings to calculate the best possible exposure. Matrix-metering is the most accurate of the metering systems.
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Also known as segmented metering, matrix metering takes the total image area and breaks it into sections, which are analyzed by the camera s light meter and compared to the light values of the surrounding sections. The results are then compared to similar lighting situations stored in the camera s memory and a correct exposure is established. This entire process occurs in a few microseconds. For more on this subject, see the explora article, ://www.bhphotovideo.com/explora/photography/tips-and-solutions/understanding-camera-metering-modes Understanding Camera Metering Modes.
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An advanced metering mode in which the camera s computer sets exposure based on its analysis of the scene s components. It is generally regarded as the most accurate metering for most lighting situations, including those with complex lighting. Matrix Meter or 3D RGB Color Matrix Meter gathers information from the red, green, and blue sensors and factors in distance information provided by the lens as it evaluates proper exposure calculation. This meter instantly analyzes a scene s overall brightness, contrast, and other lighting characteristics, comparing what is sees against an onboard database of over 30,000 images for unsurpassed exposure accuracy, even in the most challenging photographic situations. By the time the 3D Matrix meter has made its considerations of colors by hue and saturation, tonal ranges by brightest and darkest, areas of similar tonality that are connected or separated, distance to the subject, and compared that to its database generated from photographic images, it s got a very good idea of what the exposure should be.If you are a beginner, Matrix is where you should start. As your skills grow, and they will, you will acquire a better understand of when it might be beneficial to use other light metering options.What is the database of over 30,000 images? Over the years Nikon has studied the color, area of coverage, focus distance, contrast, size and shape of shadows and highlights and exposure characteristics of over 30,000 actual photographic images and incorporated this data as a reference source for the expert exposure system that is the 3D Color Matrix Meter.
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Matrix metering system :
An exposure meteringsystem using a multi-segment sensor and computer. Available in some Nikon SLRs.Withthe classic techniques of evaluating for 18% reflectance, factors such as brightnessand contrast are primarily used to determine exposure. In addition, it is essentialto evaluate each scene s esthetic factors such as color to get the best exposure.Check Nikon sown terms.
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A Nikon term for a method of calculating exposure that uses a large area of the frame. Canon’s equivalent is called Evaluative Metering.
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With CCTV system, routes one camera input to many monitor outputs.
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