from the led display 130 passes through a lens 132 and is reflected off a surface 135 of prism 110 and thence upwardly to the partially silvered surface 112 where it is reflected to the right as shown by arrow 138 light going along the optics axis 108 is reflected partially off the surface 112 and passes in the direction of arrow 140 to the sensor optics box 116 light travelling along optic axis 108 also passes adjacent arrow 138 along a line 142 to a mirror 144 in the camera body 104 pivoted about a point 146 mirror 144 represents the standard mirror used in an slr camera and operates to reflect light up through a lens 150 to a prism 156 where it is internally reflected and emerges from the back of the camera along a line 158 for viewing by the photographer as seen in fig2 the photographer will observe not only the scene being viewed but the light being emitted from the led display 130 and thus may either manually set his camera by twisting the lens body 100 or may watch the auto focus apparatus operate until the proper led indicative of a zero situation is seen when this occurs the operator may then actuate the camera picture.