Large aperture photographic lens system

Details Large aperture photographic lens system Large aperture photographic lens system

1976-02-23

1978-08-29

Clark, Conrad J.

G02B 962

Patent

active

041100077

ABSTRACT:
A large-aperture photographic lens system of variant Gauss type which has a back focal distance nearly as long as 70% of the total focal distance of the entire lens system and wherein aberrations are favorably corrected.

REFERENCES:
patent: 3938884 (1976-02-01), Nakagawa

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