Single lens reflex camera and exposure measuring mechanism there

Details Single lens reflex camera and exposure measuring mechanism there Single lens reflex camera and exposure measuring mechanism there

1977-03-08

1978-10-10

Griffin, Donald A.

354 46, 354289, G03B 1912, G03B 720, G03B 1700

Patent

active

041199812

ABSTRACT:
A single-lens reflex camera having an interchangeable objective lens and an exposure measuring circuit is provided with an adjusting device capable of being connected to a coupling element of a diaphragm stop adjuster and movable in opposition to a spring in accordance with diaphragm values to which a diaphragm detent setting device can be adjusted. The adjusting device is movable by its spring between a position corresponding to the initial diaphragm setting to a basic position on removal of the objective lens. Formed on the adjusting device is a lug which actuates a switch in the exposure measuring circuit to open circuit the latter when the adjusting device is in the basic position.

REFERENCES:
patent: 3872482 (1975-03-01), Akujoma

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