The Camera

Video Camera Tube- In older video cameras, before the mid to late 1980s, a video camera tube or pickup tube was used instead of a charge-coupled device(CCD) for converting an optical image into an electrical signal.

Camera Lens-is an optical lens or assembly of lenses used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media capable of storing an image chemically or electronically.

Photograph - Is an image created by light falling on a light-sensitive surface, usuallyphotographic film or an electronic imager such as a CCD or a CMOS chip.

Charge-coupled device (CCD)- is a device for the movement of electrical charge, usually from within the device to an area where the charge can be manipulated, for example conversion into a digital value.

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

Shutter- Each of a pair of hinged panels fixed inside or outside a window that can be closed for security or privacy or to keep out light.

Exposure- An act or instance of being uncovered or unprotected.

Depth of field- The distance between the nearest and the furthest objects that give an image judged to be in focus in a camera.

F-Stop- In optics, the f-number (sometimes called focal ratio, f-ratio, f-stop, or relative aperture) of an optical system expresses the diameter of the entrance pupil in terms of the focal length of the lens.

Focal Length- The distance between the center of a lens or curved mirror and its focus.