Luminosity

This figure of merit for an accelerator quantifies the intensity of the beams. It is directly related to the number of events produced at the machine.

luminosity

Physics; General physics

The total amount of energy radiated each second from the surface of a source.

luminosity

Photography; Professional photography

brightness of either a light source or a reflective surface.

luminosity

Design; Graphic design

The brightness of an area arranged by the amount of light it reflects or diffuses.

rubber lens-mount gasket

Photography; Professional photography

A flexible rubber gasket that forms a seal between the lens and the camera body.

subject-to-camera distance information

Photography; Professional photography

The data supplied to the camera by the lens indicating the distance from the camera to the subject. This information makes possible advances like 3D Color Matrix Metering II and ...

vignetting

Photography; Professional photography

A loss of brightness or saturation at the periphery of an image; usually not desired, but sometimes used to create a vignette framing the subject at the center of the image.

special effects mode

Photography; Professional photography

A mode in which the user can create artistic results simply by adding special effects to still images and movies. To select an effect, the user rotates the mode dial to EFFECTS ...

still picture

Photography; Professional photography

A photograph (static image) as opposed to a movie (moving picture).

stop-motion

Photography; Professional photography

Generic term for an animation technique which makes static objects appear to move. This is done by recording each movement of the object as an individual frame, when each frame ...