Aperture:
an opening, usually circular, that limits the amount of light that can enter the camera
shutter:
a device for opening and closing the aperture of a camera lens to expose film
exposure:
the act of presenting a photosensitive surface to rays of light.
depth of field:
the range of distances along the axis of a camera lens, through which an object will produce a distinct image.
F-stop:
the setting of an adjustable lens as indicated by an f number.
focal length:
the distance from a focal point of a lens or mirror to the corresponding principal plane.
Astigmatism: lines in some directions are focused less sharply than lines in other directions. |
Coma: the image of a point source of light cannot be brought into focus, but has instead a comet shape
Air: A large area of white space in a layout.
Bleed : Describes a photographic print that extends to the edges of the paper page and has no visible border ☺☻
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