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greyscale image is one in which the value of each pixel is a single sample representing only an amount of light, that is, it carries only intensity information.

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a brownish tone imparted to a photograph, esp an early one such as a calotype.

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The mid point between shadow and highlight

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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.

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A shadow is 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

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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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Camera resolution is measured in megapixels (meaning millions of pixels); both image ﬁle resolution and monitor resolution are measured in either pixels per inch (ppi) or pixel dimensions (such as 1024 by 768 pixels)

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A fisheye lens is an ultra wide-angle lens that produces strong visual distortion intended to create a wide panoramic or hemispherical image. Fisheye lenses achieve extremely wide angles of view. Instead of producing images with straight lines of perspective, fisheye lenses use a special mapping which gives images a characteristic convex non-rectilinear appearance.

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The phenomenon known as camera shake is caused by movement of the camera, which becomes noticeable as blur when using a slow shutter speed.

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When photographing a moving subject, the panning technique is achieved by keeping the subject in the same position of the frame for the duration of the exposure.

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The exposure triangle is a common way of associating the three variables that determine the exposure of a photograph

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Exposure compensation is used to alter exposure from the value selected by the camera, making photographs brighter or darker

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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 sports photography.

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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, time appears to be moving faster and thus lapsing.

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shutter speed is the unit of measurement which determines how long shutter remains open as the picture is taken

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Bulb Mode is an exposure setting that is used when seeking to use a shutter speed of more than 30 seconds.

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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.

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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. Neither should ever be substituted for the other, and any serious photographer will have both a monopod and a tripod.

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

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Auto Focus points are designed to help you know where your camera is focusing and to let you refine where the camera actually focuses

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

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An electronic viewfinder is a camera viewfinder where the image captured by the lens is projected electronically onto a miniature display.

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an instrument for measuring the intensity of light, used chiefly to show the correct exposure when taking a photograph.

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A point-and-shoot camera, also known as compact camera, is a still camera designed primarily for simple operation.

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this is where the camera makes a best guess on a shot by shot basis. You’ll find it works in many situations but it’s worth venturing out of it for trickier lighting.

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this mode is usually symbolized with a little bulb and is for shooting indoors, especially under tungsten (incandescent) lighting (such as bulb lighting). It generally cools down the colors in photos.

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this compensates for the ‘cool’ light of fluorescent light and will warm up your shots.

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not all cameras have this setting because it sets things as fairly ‘normal’ white balance settings.

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the flash of a camera can be quite a cool light so in Flash WB mode you’ll find it warms up your shots a touch.

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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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this setting generally warms things up a touch more than ‘daylight’ mode.

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depth of field (DOF), also called focus range or effective focus range, is the distance between the nearest and farthest objects in a scene that appear acceptably sharp in an image

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A 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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Thumbnails are reduced-size versions of pictures or videos, used to help in recognizing and organizing them, serving the same role for images as a normal text index does for words.

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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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a camera setting corresponding to a particular f-number.

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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 way the lens renders out-of-focus points of light

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Focal Length and Angle of view. 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