| 摘要 |
PURPOSE:To obtain a photometry device which can always obtain the accurate photometric information, by performing the switching between the reference level of photometry obtained when a light shielding element is cut off and that obtained when the light shielding element is not cut off. CONSTITUTION:A pentaprism 5 is set above a focal plate 4, and an eyepiece 6 and a photometric lens 7 are provided at the right and above the prism 5 respectively. A photometric element SP is set at the right side of the lens 7, and the right face and the lower face of the prims 5 serve as a photometric mask 9 and a viewfield mask 10 respectively. An electro-optical light shielding member 11 is provided at the lower face side of the mask 10 and has contains a driving circuit 12. A 45 deg. reflector 13 set at the lower part of the plate 4 contains a half mirror at its center part. Thus a part of the luminous flux Lt of an object to be photographed that passes through a shooting lens 20 enters an upper finder optical system while another part of the flux Lt enters a lower automatic focal point AF optical system via a submirror 14 respectively. |
