Camera with turret lens and variable frame viewfinder

Details Camera with turret lens and variable frame viewfinder Camera with turret lens and variable frame viewfinder

1983-08-10

1985-07-16

Mathews, A. A.

354121, 354222, 354268, G03B 1312

Patent

active

045292833

ABSTRACT:
A lens system for a disc camera features a plurality of objective lenses of different focal lengths carried on a turret support that can be rotated into different stable positions in front of the framing area of the film disc to bring a selective lens into picture-taking position. An associated viewfinder adjusting system ganged for operation with the turret support projects a different framing mark pattern into the field of view, the projected pattern corresponding to the image field produced by the objective lens currently in position. A shutter releases inhibitor bars actuation of the shutter release unless an objective lens is properly positioned for exposure.

REFERENCES:
patent: 2653528 (1953-09-01), Mueller
patent: 3118014 (1964-01-01), Winkler
patent: 3212422 (1965-10-01), Nerwin et al.
patent: 3619202 (1971-11-01), Bellows
patent: 3961344 (1976-06-01), Baisch et al.
patent: 4104663 (1978-08-01), Yamazaki et al.
patent: 4129369 (1978-12-01), Kobayashi et al.

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