Psuedo format camera

Details Psuedo format camera Psuedo format camera

1989-10-31

1990-09-11

Mathews, A. A.

354106, 35419512, 354222, 354224, G03B 1912, G03B 1310

Patent

active

049557157

ABSTRACT:
A single-lens reflex camera capable of switching of the optical path of a light beam from an objective lens between one leading to a photographing surface and one leading to viewfinder is disclosed, in which an auxiliary lens for contracting an image on objective lens is inserted to be on the image side thereof when switching a mode for exposing the photographing surface over to a mode, in which light is led to the viewfinder, and the viewfinder magnification is increased with a shift of some lenses of the viewfinder when a mode for printing with pseudo telephoto function is selected.

REFERENCES:
patent: 3490844 (1970-01-01), Sapp
patent: 3958257 (1976-05-01), Johnson
patent: 4104663 (1978-08-01), Yamazaki et al.
patent: 4652104 (1987-03-01), Harvey
patent: 4862202 (1989-08-01), Tsuboi et al.

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