Large aperture ultra wide angle photographic lens system

Details Large aperture ultra wide angle photographic lens system Large aperture ultra wide angle photographic lens system

1977-04-25

1979-03-20

Clark, Conrad J.

G02B 1304

Patent

active

041451163

ABSTRACT:
A large-aperture ultra-wide angle photographic lens system which have such a small lens diameter as to be compatible with filters designed for use with other lens systems and wherein various aberrations are favorably corrected.

REFERENCES:
patent: 3976365 (1976-08-01), Nakagawa
patent: 3976366 (1976-08-01), Yamashita
patent: 4029397 (1977-06-01), Yamashita

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