Inverted galilean type variable magnification zoom finder

Details Inverted galilean type variable magnification zoom finder Inverted galilean type variable magnification zoom finder

1997-05-29

1999-09-14

Perkey, W. B.

Photography

With viewfinder

Selective or adjustable viewfinder field

G03B 1310

Patent

active

059535482

ABSTRACT:
An inverted Galilean type variable magnification zoom finder has a field frame, which can be moved in accordance with a change in magnification of a finder optical system. The field frame may be moved integral with, or independently of, a lens or a lens unit.

REFERENCES:
patent: 5300977 (1994-04-01), Lewis et al.
patent: 5404189 (1995-04-01), Labaziewicz et al.

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