Photographic camera with built-in optical converter

Details Photographic camera with built-in optical converter Photographic camera with built-in optical converter

1983-02-23

1985-06-25

Gonzales, John

G03B 300

Patent

active

045250502

ABSTRACT:
A photographic camera comprising a principal lens assembly and a converter lens assembly for providing a focal length different from that of the principal lens assembly when used. The converter lens assembly is carried by an intermediate barrel for the support of the principal lens assembly through a lens mount such that the converter assembly can move together with the principal lens assembly. A switching mechanism is also used for selectively bringing the converter lens assembly into and out of alignment with the optical axis of the principal lens assembly.

REFERENCES:
patent: 4214829 (1980-07-01), Ohashi

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