the camera

aperture: a hole or opening where light travels

 shutter: Behind-the-lens shutters were used in some cameras with limited lens interchangeability. Shutters in front of the lens, sometimes simply a lens cap that is removed and replaced for the long exposures required, were used in the early days of photography.

 exposure: The size of the aperture and the brightness of the scene controls the amount of light that enters the camera during a period of time, and the shutter controls the length of time that the light hits the recording surface. Equivalent exposures can be made with a larger aperture and a faster shutter speed or a corresponding smaller aperture and with the shutter speed slowed down.



depth of field: s the distance between the nearest and farthest objects in a scene that appear acceptably sharp in an image


F-stop: the opening or closing of the aperture 

focal length: since covering the film rather than blocking light passing through the lens allows the photographer to view through the lens at all times except during the exposure itsel

lens: The lens of a camera captures the light from the subject and brings it to a focus on the film or detector.

 flash diffuser:  spreads the light from the flash of a camera

diaphragm: s a thin opaque structure with an opening (aperture) at its center. The role of the diaphragm is to stop the passage of light, except for the light passing through the aperture.

 film frames: is one of the many still (or nearly so) images which compose the complete moving picture. The term is derived from the fact that, from the beginning of modern film making toward the end of the 19th century, and in many places still up to the present, the single images have been recorded on a strip of photographic film that quickly increased in length, historically; each image on such a strip looks rather like a framed picture when examined individua