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In Digital Photography ISO measures the sensitivity of the image sensor. The same principles apply as in film photography – the lower the number the less sensitive your camera is to light and the finer the grain. ... By choosing a higher ISO you can use a faster shutter speed to freeze the movement.

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Image noise is random variation of brightness or color information in images, and is usually an aspect of electronic noise. It can be produced by the sensor and circuitry of a scanner or digital camera. ... Image noise is an undesirable by-product of image capture that obscures the desired information.

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ASA and ISO are both measurements of film speed, or sensitivity to light. ASA is a scale created by the American Standards Association, but it is no longer widely used. Now, most film is labeled by ISO, which was created in 1987 by the International Organization for Standardization.

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Film grain or granularity is the random optical texture of processed photographic film due to the presence of small particles of a metallic silver, or dye clouds, developed from silver halide that have received enough photons. ... It can be objectionably noticeable in an over-enlarged photographic film photograph.

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an electronic device that converts an optical image into an electronic signal. It is used in digital cameras and imaging devices to convert the light received on the camera or imagingdevice lens into a digital image.

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A digital still image camera that uses a single lens reflex (SLR) mechanism. Most professional cameras have been single lens reflex, although analog film until digital SLRs emerged in the early 1990s.

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a set of data that describes and gives information about other data. Photo metadata allows information to be transported with an image file, in a way that can be understood by other software, hardware, and end users, regardless of the format.

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a term used by graphic designers and photographers for a small image representation of a larger image, usually intended to make it easier and faster to look at or manage a group of larger images.

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“straight-out-of-camera” and denotes *ZERO* computer photoshop.

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Vibration Reduction (VR) is an image stabilization technology that minimizes blur caused by camera shake. ... Nikon VR lenses use two angular velocity sensors, one that detects vertical movement (pitch), the other, horizontal movement (yaw), with diagonal motion handled by both sensors working together.

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what the camera uses to focus on a subject. You'll probably first notice them when you press the shutter halfway. Many cameras will emit a "beep," and some of the AF points will light up (often in a red or green color) in the viewfinder or on the display screen.

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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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exposure is the amount of light which reaches your camera sensor or film. It is a crucial part of how bright or dark your pictures appear. There are only two camera settings that affect the actual “luminous exposure” of an image: shutter speed and aperture.

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a technique for adjusting the exposure indicated by a photographic exposuremeter, in consideration of factors that may cause the indicated exposure to result in a less-than-optimal image.

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also called continuous shooting mode, sports mode or continuous high speed mode, is a shooting mode in still cameras. In burst mode, several photographs are captured in quick succession by either pressing the shutter button or holding it down.

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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 an auto white balance (AWB) setting.

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the sunny 16 rule (also known as the sunny f/16 rule) is a method of estimating correct daylightexposures without a light meter. ... As the rule is based on incident light, rather than reflected light as with most camera light meters, very bright or very dark subjects are compensated for.

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slight darkness or shelter from the direct light of the sun made by something blocking it a plant that needs a lot of shadein the shade (of something) She was sitting in the shade of a large oak tree.

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cloudy or overcast day produces really soft light that can be flattering on the human face. ... Sometimes Most of the time overcast light is actually pretty boring and removes any and all contrast from your scene.

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refers to an artificial lighting source (like a lamp or ceiling fixture) that emits heat and produce a “warmer” or reddish colour.

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White balance (WB) is the process of removing unrealistic color casts, so that objects which appear white in person are rendered white in your photo. Proper camera white balance has to take into account the "color temperature" of a lightsource, which refers to the relative warmth or coolness of white light.

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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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a usage or practice common to many or to a particular place or class or habitual with an individual It is the custom in New Orleans to celebrate Mardi Gras.

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1. the time for which a shutter is open at a given setting.

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an exposure setting that is used when seeking to use a shutter speed of more than 30 seconds. Generally, this would be used in extremely low light situations, such as taking photos of the night sky.

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Photos taken with a camera do not represent a single moment of time. ... In motion blur, any object moving with respect to the camera will look blurred or smeared along the direction of relative motion.

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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.

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Camera shake is a term used to define the act of accidentally shaking a cameraduring shooting due to unsteady hands, which results in blurry images. This generally occurs more often if you're shooting on a low shutter speed or with a heavy lens, and can be avoided by using a tripod and cable release setup.

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Automatic exposure mode (also called automatic exposure and abbreviated as AE) is a standard feature on digital cameras that will automatically determine the correct exposure for pictures without any user input other than to select the AE option before taking a picture.

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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-automatic modethat makes at least some of the calls for the photography.

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Aperture priority, often abbreviated A or Av (for aperture value) on a camera mode dial, is a settingon some cameras that allows the user to set a specific aperture value (f-number) while the cameraselects a shutter speed to match it that will result in proper exposure based on the lighting conditions

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In TV mode the user specifies a shutter speed, while the camera adjusts the aperture size to correctly expose the image. This mode is typically used to freeze high speed action with a fast shutter speed, or intentionally create some sense of movement and blur in an image, ie, by using a slow shutter speed.

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Program mode (the "P" on the mode dial of most DSLRs) means that the camera still sets the exposure for you. It chooses the correct aperture and shutter speed for the light available, so your shot is correctly exposed.

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Shadows are not simply a dark mass that borders the light. Rather, shadows are an entity as alive as the light. It is the shadows that shape the light, draw attention to the light, and integrate with the light to produce striking photographic opportunities.

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there are three areas of 'tone' within the total range of color in an image, The Highlights contain the brightest tones, the Shadows contain the darkest, and the midtones contain everything in between.

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

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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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In what you might term ‘regular photography’, with your camera in an automatic or semi-automatic exposure mode, you’re likely working with a shutter speed of somewhere between 1/60 of a second and 1/4000 of a second.

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a technique whereby the frequency at which film frames are captured (the frame rate) is much more spread out than the frequency used to view the sequence. When played at normal speed, time appears to be moving faster and thus lapsing.

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is the Art Form of using handheld lights to paint and/or draw in a scene while the shutter of a camera is left open during a long exposure photograph. ... LIGHT SOURCE: To create a light painting using the Light Painting Brushes System you need a handheld light source.

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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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Understanding Digital Camera Resolution. The term "Resolution", when used to describe a digital camera refers to the size of the digital image the cameraproduces, and is usually expressed in terms of "megapixels" or how many million pixels it can record in a single image.