175709 ⎘
Control of exposure by setting shutters, diaphragms or filters, separately or conjointly; Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device; Arrangement of photoelectric elements in or on the camera in the camera; Through the lens [TTL] measuring in mirror-reflex cameras the sensor being mounted in, before, or behind the porro-prism