| 摘要 |
PROBLEM TO BE SOLVED: To lay out a circuit board, a power supply and a recording medium or the like to an electronic camera of a signal-lens reflex type with compactness and a well-balanced weight without the need for dividing the circuit board. SOLUTION: A light guide optical block 6 is provided behind a mirror box 4 and a secondary image forming optical system block 7 is placed to a lower right position at the time of viewing a camera rear face of the light guide optical block 6. A recording card medium 9 and a circuit board 10 are respectively placed along a left side face of the mirror box 4 and the light guide optical block 6, and a columnar power supply 11 that is comparatively heavier is placed above the right side secondary image forming optical system block 7. A thermal insulation material may be placed between the power supply 11 and the secondary image forming optical system block 7.
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