View finder for reflex camera

Claim 1

A view finder for a reflex camera in which a mirror is provided in a camera body to reflect light coming through the taking lens thereof at a right angle and a focusing plate is provided at a right angle with respect to the optical axis of the light reflected by the mirror, said view finder comprising a first relecting means provided above the focusing plate of the camera to reflect at a right angle the light from the focusing plate along a path parallel to the optical axis of the taking lens, second reflecting means positioned optically behind said first reflecting means to reflect at a right angle the light from said first reflecting means, means for connecting the second reflecting means to the first reflecting means allowing the second reflecting means to take two positions with respect to the first reflecting means, said two positions being angularly different by 90°, in one of said two positions the second reflecting means reflecting the light from the first reflecting means in the direction parallel to the optical axis of the light reflected by the mirror in the camera, and in the other position the second reflecting means reflecting said light at right angle in the direction at right angle with respect to said direction, and a magnifier located optically behind said second reflecting means, wherein the improvement comprising either said first reflecting means or said second reflecting means having a roof prism to reverse the right and left of the image reflected thereby.