Camera viewfinder with masking device for varying the viewing fi

Details Camera viewfinder with masking device for varying the viewing fi Camera viewfinder with masking device for varying the viewing fi

1994-06-02

1995-07-04

Gellner, M. L.

G03B 1310

Patent

active

054305179

ABSTRACT:
A camera viewfinder comprises a viewfinder window defining a viewing field, and a masking device movable to position respective mask openings having different aspect ratios over the viewfinder window to vary the viewing field. The masking device includes a pair of separate independent masks, each of which has one of the mask openings and is movable relative to the other over the viewfinder window from respective locations at opposite sides of the viewfinder window.

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