Patent ID: 7652710

Claim:
A camera with a photometric function comprising: an optical system guiding subject light incident through a photo-taking lens toward a finder; an auxiliary light synthesizing unit generating auxiliary light to display auxiliary information in a superimposed manner on a subject image on the finder and generating synthetic light by synthesizing the subject light with the auxiliary light; a light branching unit extracting part of the synthetic light toward the finder as branched light; and a photometric unit measuring an intensity of the branched light to determine correct exposure, wherein the auxiliary light synthesizing unit has a function of generating the synthetic light in which the subject light and the auxiliary light have their respective different polarization properties, and an auxiliary light separating unit separating the subject light and the auxiliary light based on the different polarization properties is provided between the light branching unit and the photometric unit so that light excluding the auxiliary light is incident on the photometric unit.