.~> Illumination angle responds to focal length or distance
DEFINITION
Classification: 396/61
FLASH SYSTEM RESPONSIVE TO FOCAL LENGTH OR DISTANCE:
(under the class definition) Subject matter wherein an artificial illumination means or a circuit controlling the artificial illumination means is adjusted in accordance with the focal length of the exposure objective or the distance from the camera to an object.
SEE OR SEARCH THIS CLASS, SUBCLASS:
155+, for object exposure illumination in general.
, FOR 771+, for foreign art collections involving object illumination with camera structure.