Graphics Programs Reference
In-Depth Information
Glossary of Digital Photography Terms
Aberration
A deviation from the norm, or a defect in the characteristics of a lens.
Aperture
The opening in the Diaphragm of a Compound Lens through which the image
must pass. A means of blocking unwanted light from reaching the Sensor.
APS (Advanced Photo System)
An obsolete 1996 Standard for higher quality camera
film. It never caught on for a variety of reasons including the success of digital cameras.
APS-C
A Digital Sensor roughly the size of a frame of APS Classic film.
APS-H
A Digital Sensor roughly the size of a frame of APS High-Defintion film
Auto-Exposure
The camera automatically sets Aperture and Shutter Speed based on im-
age details and exposure measurements from the camera's built-in exposure meter.
Auto-Focus
Camera automatically adjusts the focus based on the closest object that co-
incides with an activated focus point in the camera's viewer. The more focus points that the
camera uses, the better the chances of proper focus.
Auto Lighting Optimizer
Adds contrast and definition to dark and flat images.
Bridge Camera
A camera that “bridges the gap” between Point-and-Shoot and DSLR
cameras.
CCD (Charge Coupled Device)
Sensors commonly used in precision digital imaging ap-
plications for science and medicine. Less common in digital cameras.
Center-Weighted Metering AE
An exposure metering method that places more attention
on the center of the frame.
CMOS (Complementary Metal-Oxide-Semiconductor)
The type of Sensor that dom-
inates the Digital camera market.
Color Space
A range of possible colors captured by digital cameras and displayed by
monitors. Also a range of colors that can be printed.
