| 摘要 |
PROBLEM TO BE SOLVED: To provide a finder mechanism for a single-lens reflex camera which can suppress the height of a pentagonal prism top-side cover and prevent the camera from becoming large-sized by providing an AWB sensor on the oblique surface of the roof of a pentagonal prism separately from an AE sensor provided at the upper part of the back of the pentagonal prism. SOLUTION: An AWB 1st prism 2 has its incidence surface made opposed to a small takeout window 4a for AWA. The projection surface is so confronted that a part of subject reflected light which is made incident from the incidence surface is guided to above the back of the pentagonal prism and projected backward above the pentagonal prism roof. An AWB 2nd prism 3 has its end- part incidence surface opposite the projection surface of the AWB 1st prism 2. The projection surface at the other end is arranged facing the opposite surface almost in parallel to the roof of a pentagonal prism left roof 4. An AWB sensor 1 is provided across an averaged light measuring filter 9. It is positioned below the pentagonal prism left roof 4c, so it is never taller than the peak 4f of the pentagonal prism. |
