Rear conversion lens system

Details Rear conversion lens system Rear conversion lens system

1987-01-08

1988-06-07

Corbin, John K.

350474, G02B 1502, G02B 912

Patent

active

047492635

ABSTRACT:
A rear conversion lens system which is removably inserted behind an objective lens of a pseudo telephoto camera upon photographing in a trimming mode is inserted for acquiring a print on which the image of the object is printed of greater size.
The rear conversion lens system fulfills the following condition: ##EQU1## wherein: f represents the focal length of the whole optical system when the rear conversion system is inserted,

REFERENCES:
patent: 3490844 (1970-01-01), Sapp, Jr.

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