Reflex zoom lens having aperture scale

Details Reflex zoom lens having aperture scale Reflex zoom lens having aperture scale

1982-12-21

1985-04-16

Henry, Jon W.

350429, 350448, 35419513, G02B 710

Patent

active

045112215

ABSTRACT:
A reflex zoom lens assembly includes a reflection optical system in which the full-aperture F number varies with focal length. A zoom ring of the assembly includes an aperture scale correlated to the focal length.

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