| 摘要 |
PURPOSE:To obtain an accurate photometry without generating the strabismus of a photometry element by providing the photometry element on the extension of an optical axis at the time of constituting a finder optical system. CONSTITUTION:The title photometry system is provided with two bent surfaces to make a finder optical axis bent and reflected to be reciprocal in the direction of nearly intersecting orthogonally with the surface including an optical axis bent by a movable mirror 2 and the optical axis of photographic lens 1, and three reflected surfaces positioned on the finder optical axis to make the finder optical axis bend and reflected; furthermore, an image-forming lens 17 and the photometry element 18 positioned on the finder optical axis on the extension of the optical axis bent in the direction intersecting orthogonally with a secondary image-forming system 11 which allows a primary image-forming to be image-formed again by the photographic lens 1. Thus, while a finder magnification can be improved, the height of the finder optical system can be lowered, and the accurate photometry without the strabismus can be possible. |
