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an exposure system used in some automatic cameras in which 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 A dimensionless number that is a quantitative measure of lens speed and an important concept of photography.

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

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the aesthetic quality of the blur produced in the out of focus parts of an image produced by a lens. Th way the lens renders out-of-focus points of light

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The distance between the nearest and furthest objects that give an image judged to b e in focus in a camera

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A Digital Single Lens Reflex is a digital camera that combines the optics and mechanisms of a single lens reflex camera with a digital imaging sensor, instead of photographic film

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A set of data that describes and gives information to be transported with an image file, in a way that can be understood by the software and hardware

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a setting on the camera that lets you control manually, settings such as shutter speed aperture, and ISO.

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A mode in which the camera calculates both shutter speed and aperture.

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a helpful mode for beginners on nikon cameras.

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A setting on the camera that allows the user to choose a specific shutter speed while the camera adjusts the aperture to ensure correct exposure.

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a mode where the camera's software fully controls all the aspects of the photograph from the shutter speed to the aperture setting to the focus

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a point of focus that the camera automatically chooses, or it can be manually chosen

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the technique of taking several shots of the same subject using different camera settings.

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A camera viewfinder where the image captured by the lens is projected electronically onto a miniature display

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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. Such as night sky pictures

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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 three legged stand for supporting a camera or other device.

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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 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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a common way of associating the three variables that determines the exposure of a photograph: aperture, shutter speed and ISO. One must balance all three of these to achieve a desired result, an adjustment of one requires and adjustment of another

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the control by which temporarily adjust your camera's definition of what is properly exposed. It's a way to force the camera to make your photos

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Several photographs are captured in quick succession by pressing or holding down the shutter button

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A technique where the frequency at which the frames are captured are much slower than that used to view a sequence

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image editing in photography

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Involves using long duration shutter speed to sharply capture the stationary elements of images while blurring, smearing, or obscuring the moving elements

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measured in megapixels.

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A wide angle lens with a field of vision covering up to 180 degrees, the scale being reduced toward the edges

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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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televise while rotating a camera on it's vertical or horizontal axis to keep a moving person or object in view or allow the film to record a panorama

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when the value of each pixel is a simple sample representing only an amount of light. they have many shades of grey in between

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a dark reddish-brown pigment obtained from the inky secretion of the cuttlefish

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the range of tones which lie between highlights with detail and shadows with detail

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a bright spot in a photograph. Normally assumed to be one of the brightest points of the image

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A dark area where the light from the light source is blocked by an opaque object.