Apparatus for reflection photometry of a single lens reflex camera

摘要

An apparatus for reflection photometry of a single lens reflex camera includes a first shutter blind, the surface of which exhibits a reflectivity which is nearly one-half the reflectivity of a film surface. During the time a photoelectric transducer element, used for photometry, receives light reflection from the surface of the first blind, an output from a photometric circuit is doubled so as to be substantially equal to the output produced when the transducer element receives light reflection from the film surface during the running of the first blind.