Black's Photo Glossary
# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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LAG TIME
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The delay between pressing the shutter release and the moment the camera takes a picture. Prosumer and Digital SLR cameras have very low lag times.
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LANDSCAPE MODE
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Automatic picture mode optimized for capturing pictures of elements of the landscape.
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LANDSCAPE ORIENTATION
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Image orientation in which the width is greater than the height. This is the standard orientation for your camera. The opposite of PORTRAIT ORIENTATION.
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LCD
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Liquid Crystal Display. A flat panel that uses liquid crystals between two glass plates to create an image.
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LCD VIEWFINDER
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Located on the back of a camera, sometimes on a pivoting platform. An LCD used to view the image that is being captured.
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LED
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Light-Emitting Diode. A small semiconductor that emits coloured light. Often used as a status indicator. LEDs are usually red, green, yellow, or white.
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LENS
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A combination of glass or plastic elements mounted on the front of a camera and that focusses light on a sensor or on film.
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LENS HOOD
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An optional, open-ended accessory that fits over the front of a camera lens to reduce the effect of strong light and glare on the final photographs.
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LENS SPEED
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The widest possible aperture on a camera or lens. The wider it is, the faster a camera is said to be.
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LIGHT METER
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A device that measures the quantity of light and determines the correct exposure setting for a camera. It is built in to compact digital cameras and can be used automatically or manually.
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LITHIUM ION (Li-On) BATTERY
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A high-capacity rechargeable battery used in portable electronic devices such as cell phones, notebook computers, PDAs and digital cameras. Unlike older rechargeable batteries, Li-On batteries do not suffer from a memory effect and will not lose their ability to hold a charge if they are not fully drained between charges. Li-On batteries typically take the form of special battery packs designed for specific products.
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