Viewing system for reflex camera

Details Viewing system for reflex camera Viewing system for reflex camera

1976-01-13

1977-09-06

Hix, L. T.

354152, 354225, G03B 1312, G03B 1912

Patent

active

040472078

ABSTRACT:
A viewfinder system for a single lens reflex camera where the field lens of the system is positionable in accordance with the distance of the objective lens exit pupil from the focal plane and eyepiece lenses are positionable in accordance with the field lens to maintain uniform viewfinder brightness without any essential change in image magnification.

REFERENCES:
patent: 3882520 (1975-05-01), Kamp et al.
patent: 3890626 (1975-06-01), Ettischer et al.
patent: 3903537 (1975-09-01), Ettischer et al.

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