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an exposure system used in some automatic cameras in which the aperture is selected by the user and the appropriate shutter speed is controlled automatically.

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The measurement of the aperture setting in a camera lens. The f-stop setting determines how much light is allowed to enter the lens and pass through to the film (analog) or CCD or CMOS sensor (digital).

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a space through which light passes in an optical or photographic instrument, especially the variable opening by which light enters a camera

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the visual quality of the out-of-focus areas of a photographic image, especially as rendered by a particular lens.

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The focal length of the lens is the distance between the lens and the image sensor when the subject is in focus, usually stated in millimeters (e.g., 28 mm, 50 mm, or 100 mm). In the case of zoom lenses, both the minimum and maximum focal lengths are stated, for example 18–55 mm.

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the distance between the nearest and the furthest objects that give an image judged to be in focus in a camera.

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Digital Single Lens Reflex. Camera

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a set of data that describes and gives information about other data.

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Both Vibration Reduction (Nikon) and Image Stabilization (Canon) is a technology that helps stabilize the lens movement associated from hand shake which helps eliminate blurry photos resulting from hand shake or too slow of a shutter speed.

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a very small or concise description, representation, or summary.

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Manual exposure is what is achieved when a photographer uses a camera in manual mode. Manual mode requires the photographer to make all the decisions that determine an image's exposure, as opposed to an automatic or semi-automaticmode that makes at least some of the calls for the photography.

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The four main modes, sometimes abbreviated "PASM", are: P: Program mode has the camera calculate both shutter speed and aperture (given a manually or automatically selected ISO).

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Advantages: Other than Manual mode (next paragraph), Aperture Priority is the most popular shooting mode photographers use, mainly because it controls what is in focus in your image. ... Beware that changing your aperture will also affect your shutter speed.

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Shutter priority refers to a setting on some cameras that allows the user to choose a specific shutter speed while the camera adjusts the aperture to ensure correct exposure. ... Shutter priority with longer exposures is chosen to create an impression of motion. For example, a waterfall will appear blurred and fuzzy.

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In Nikon cameras, the Auto ISO mode first adjusts the shutter speed, keeping ISO at its minimum desired value, then, when shutter speed reaches the user-defined limit, the ISO is increased, up to the maximum value. All of the above functions are independent of lens focus and stabilizing methods.

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White balance is a feature many digital cameras and video cameras use to accurately balance color. ... Since different types of lighting affect the way a camera's sensor captures color, most digital cameras and camcorders include anauto white balance (AWB) setting.

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Something that emits light is known as a light source. Light sources can be divided into natural light sources, such as the sun, stars, lightning, and bioluminescence, and artificial light sources, including incandescent lighting, fluorescent lighting, and sodium lamps. ... Light Sources Have a "Color Temperature"

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(of a substance) having or showing fluorescence

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direct heat/sunlight. However, far more use is made of geothermal energy for direct heat. ... Unfortunately it get direct sunlight, and is afflicted with algae. • In bright or open shade, there is no direct sunlight but plenty of indirect light.

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flash photography. noun. 1. photography in which a flashbulb or electronic flash is used to provide momentary illumination of a dark or insufficiently lit subject.

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(of the sky or weather) covered with or characterized by clouds; overcast.

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comparative darkness and coolness caused by shelter from direct sunlight.

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focal point in Science. focal point. The point at which all radiation coming from a single direction and passing through a lens or striking a mirror converges. Also called focus. The American Heritage® Science Dictionary.

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In photography, bracketing is the general technique of taking several shots of the same subject using different camera settings. ... Autobracketing is automatic bracketing by using a setting on the camera to take several bracketed shots (in contrast to the photographer altering the settings by hand between each shot).

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An electronic viewfinder (EVF) is a camera viewfinder where the image captured by the lens is projected electronically onto a miniature display. The image on this display is used to assist in aiming the camera at the scene to be photographed.

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Tells you if the image will turn out too bright or too dark.

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A point-and-shoot camera, also known as compactcamera, is a still camera designed primarily for simple operation. Most use focus free lenses or autofocus for focusing, automatic systems for setting the exposure options, and have flash units built in. ... None have lens threads.

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In photography and digital photography the shutter speed is the unit of measurement which determines how long shutter remains open as the picture is taken. The slower the shutter speed, the longer the exposure time. The shutter speed and aperture together control the total amount of light reaching the sensor.

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Bulb mode simply allows the photographer to take a picture for as long as the shutter is depressed (that means pushed down, not sad…). ... Now you're in bulb mode. This means the camera will keep taking a picture until your finger comes off the shutter button.Bulb mode is mostly used for long exposures at night.

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Motion blur is the apparent streaking of rapidly moving objects in a still image or a sequence of images such as a movie or animation. It results when the image being recorded changes during the recording of a single exposure, either due to rapid movement or long exposure.

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In photography, a tripod is used to stabilize and elevate a camera, a flash unit, or other photographic equipment. All photographic tripods have three legs and a mounting head to couple with a camera. ... Tripods are usually made from aluminum, carbon fiber, steel, wood or plastic.

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Light painting, or light drawing, is a photographic technique in which exposures are made by moving a hand-held light source while taking a long exposurephotograph, either to illuminate a subject or to shine a point of light directly at the camera, or by moving the camera itself during exposure.

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The exposure triangle is a common way of associating the three variables that determine theexposure of a photograph: aperture, shutter speed, and ISO. One must balance all three of these to achieve a desired result, an adjustment of one requiring adjustments of at least one of the others.

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Exposure compensation is the control by which you temporarily adjust your camera's definition of what is "properly exposed". Put simpler, it's a way to force the camera to make your photos darker or brighter to the degree that you tell it.

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In burst mode, several photographs are captured in quick succession by either pressing the shutter button or holding it down. This is used mainly when the subject is in successive motion, such as sportsphotography.

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Time-lapse photography is a technique whereby the frequency at which film frames are captured (the frame rate) is much lower than that used to view the sequence. When played at normal speed, timeappears to be moving faster and thus lapsing

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Post-processing may refer to: Image editing in photography. Audio editing software in audio. Differential GPS post-processing, an enhancement to GPS systems that improves accuracy. Video post-processing, methods used in video processing and 3D graphics.

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Long-exposure, time-exposure, or slow-shutterphotography involves using a long-duration shutter speed to sharply capture the stationary elements of images while blurring, smearing, or obscuring the moving elements.

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Image resolution is the detail an image holds. The termapplies to raster digital images, film images, and other types of images. Higher resolution means more image detail. Imageresolution can be measured in various ways. ... Photographiclens and film resolution are most often quoted in line pairs per millimeter.

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fisheye lens is an ultra wide-angle lens that produces strong visual distortion intended to create a wide panoramic or hemispherical image. ... Mass-produced fisheye lenses forphotography first appeared in the early 1960s and are generally used for their unique, distorted appearance.

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Unintentional slight movement of a camera during photography or filming, liable to cause blurring of the image.

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panned, panning. 1. to photograph or televise while rotating a camera on its vertical or horizontal axis in order to keep a moving person or object in view or allow the film to record a panorama : to pan from one end of the playing field to the other during the opening of the football game.

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A grayscale image is a black and white image with shades of gray. Black would be the darkest shade of gray and white the lightest shade with many shades of gray in between. ... A black and white photograph is a sample of a grayscale image. Line artis an image that consists of lines without any gradation of shade or color.

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It's important to know what shadows, midtones and highlights are in photographicterms when it comes to using Photoshop. ... Shadows are the darkest areas of aphotograph. A shadow is also devoid of color; it could be the black in a photographor just the areas that carry little light.

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a dark reddish-brown pigment obtained from the inky secretion of the cuttlefish. any cuttlefish of the genus Sepia. 3. a brownish tone imparted to a photograph, esp an early one such as a calotype.

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A highlight is a bright spot in a photograph. Normally it is assumed to be one of the brightest points in the image. Highlights are normally created by a bright or intense illumination or by various forms of diffusion or reflection. Highlights are created by any bright light source.

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A grayscale image is a black and white image with shades of gray. Black would be the darkest shade of gray and white the lightest shade with many shades of gray in between. ... A black and white photograph is a sample of a grayscale image. Line artis an image that consists of lines without any gradation of shade or color.