Graphics Programs Reference
In-Depth Information
Imaging Core The Digital Camera equivalent of a computer's CPU.
Jpeg (Joint Photographic Experts Group) A file format for photographic images that
creates compressed files for easy and rapid transmission over the Internet and on We-
bpages.
Kit Lens The Interchangeable Lens that is offered at the time of purchase with the cam-
era body for DSLR cameras. There is often a choice of Kit Lenses at different price points.
Purchasing a Lens with the camera body often represents a savings of several hundred dol-
lars.
Large-Format Camera A camera that captures an image on film or digital sensor that
is larger than 4 in. X 5 in.
LCD (liquid Crystal Display) Screen A small electronic display panel on the back of
digital cameras used to display camera settings and review images.
Leaf Shutter A type of shutter used in digital Point-and-Shoot cameras as well as Me-
dium- and Large-Format cameras. It operates very much like the Diaphragm, but is either
wide open or totally closed.
Lens Extender Tube A cylindrical tube that is mounted between a Lens and the Camera
Body. Its purpose is to change the focal length of the Lens by a specified factor, for ex-
ample, 1.4X.
Macro Lens A Lens that is specifically designed for close-up photography of small sub-
jects, such as flowers and bugs.
Medium-Format Camera A camera that captures an image on film or digital sensor
that is larger than 2.25 in. X 2.25 in. but less than 4in X 5 in
Mirror A mirror which is normally in a 45° position in order to deflect the image com-
ing through the camera lens to the Viewfinder. It snaps to a horizontal position just before
the shutter opens and returns to its normal position just after the shutter closes. It can also
be manually moved to the horizontal position for cleaning the Sensor and very fast expos-
ures.
Mirrorless Camera A Compact camera design with interchangeable Lenses that has
no Mirror or Optical Viewfinder. Also known as an EVIL (Electronic Viewfinder Inter-
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