Zoom camera with pseudo zooming function

Details Zoom camera with pseudo zooming function Zoom camera with pseudo zooming function

1999-02-25

2000-07-18

Adams, Russell

Photography

Pseudo zoom

G03B 1700

Patent

active

060919027

ABSTRACT:
A zoom camera with a pseudo zooming function for assigning a frame a pseudo zoom ratio by which a printing area and a print magnification of the frame are modified to obtain a photo print that looks like being photographed at a virtual focal length that is equal to a multiplication product of the pseudo zoom ratio and an actual focal length of a taking lens used for photographing the frame. A virtual focal length is determined in accordance with operating direction and amount of a manual zooming operation member. A viewfinder is controlled in correspondence with the virtual focal length, to show a photographic field to be contained in a photo print as photographed at the virtual focal length. In accordance with a predetermined relationship between virtual focal length and actual focal length and pseudo zoom ratio, actual focal length of the taking lens is changed depending upon the virtual focal length, and a pseudo zoom ratio is decided to each frame depending upon the virtual focal length determined at the photography of that frame. The pseudo zoom ratio is recorded in association with the photographed frame.

REFERENCES:
patent: 4583831 (1986-04-01), Harvey
patent: 5606383 (1997-02-01), Daitoku et al.
patent: 5627622 (1997-05-01), Ootsuka et al.
patent: 5694624 (1997-12-01), Daitoku et al.

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