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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 ratio of the system's focal length to the diameter of the entrance pupil. It is a dimensionless number that is a quantitative measure of lens speed,

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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 distance between the center of a convex lens or a concave mirror and the focal point of the lens or mirror — the point where parallel rays of light meet, or converge.

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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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a digital camera that combines the optics and the mechanisms of a single-lens reflex camera with a digital imaging sensor, as opposed to photographic film.

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information that describes not just some random documents and files, but image files. As with all sorts of metadata, it contains information on who made it, when, using what. Certain metadata entries are generated automatically by the camera.

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an image stabilization technology that minimizes blur caused by camera shake

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

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one of the main settings on your camera, and it lets you manually control shutter speed, aperture, and ISO.

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has the camera calculate both shutter speed and aperture (given a manually or automatically selected ISO).

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allows you to adjust the settings

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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.

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the cameras will make all the decisions for you, including the aperture setting, the shutter speed, white balance and ISO.

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a feature many digital cameras and video cameras use to accurately balance color

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General name given to illumination that's produced from an electrically heated source, such as a lamp's tungsten wire filament.

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process that records the glow or visible light given off by certain substances when they are irradiated by ultraviolet rays.

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When the sun shines directly on something

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when a flashbulb or electronic flash is used to provide momentary illumination of a dark or insufficiently lit subject.

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warms up cool shots

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the light in shade is generally cooler (bluer) than shooting in direct sunlight so this mode will warm things up a little.

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what the camera uses to focus on a subject.

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taking the same photo more than once using different settings for different exposures

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Electronic View Finder.   basically just a tiny version of the LCD screen on your camera when shooting in live view mode.

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Light meters in cameras react to how intense the light is as seen from the camera.

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a still camera designed primarily for simple operation

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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.

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allows the photographer to take a picture for as long as the shutter is depressed

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the apparent streaking of rapidly moving objects in a still image or a sequence of images such as a movie or animation

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A monopod is a single pole that is used to support a camera. A tripod is a three-legged frame that is used to stabilize a camera.

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a photographic technique in which exposures are made by moving a hand-held light source while taking a long exposure photograph

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a common way of associating the three variables that determine the exposure of a photograph: aperture, shutter speed, and ISO.

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a way to force the camera to make your photos darker or brighter to the degree that you tell it.

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several photographs are captured in quick succession by either pressing the shutter button or holding it down.

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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, time appears to be moving faster and thus lapsing.

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Image editing

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use a slow shutter speed to create that trail of light.

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refers to the number of pixels in an image. Resolution is sometimes identified by the width and height of the image as well as the total number of pixels in the image.

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an ultra wide-angle lens that produces strong visual distortion intended to create a wide panoramic or hemispherical image

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the act of accidentally shaking a camera during shooting due to unsteady hands, which results in blurry images.

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a camera technique used to capture motion blur and convey movement while keeping a moving subject sharp

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a range of monochromatic shades from black to white. Therefore, a gray scale image contains only shades of gray and no color.

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a form of photographic print toning – a tone added to a black and white photograph in the darkroom to “warm” up the tones

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That range of tones which lie between highlights with detail and shadows with detail. * Usually represents the portion of tone reproduction in which gradations change in proportion to change in brightness.

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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.

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a dark area where light from a light source is blocked by an opaque object. It occupies all of the three-dimensional volume behind an object with light in front of it.