Interchangeable zoom lens, an electronic still camera, and a sil

Details Interchangeable zoom lens, an electronic still camera, and a sil Interchangeable zoom lens, an electronic still camera, and a sil

1999-08-03

2000-10-10

Perkey, W. B.

Photography

Pseudo zoom

396 72, 396529, 348240, 348358, G03B 1700

Patent

active

06130994&

ABSTRACT:
An interchangeable zoom lens is shown which includes: a mount portion for mounting a camera body; a zoom operation member; optical zoom device for varying focal length of the zoom lens in response to operation of the zoom operation member; and signal output device provided on the mount portion for outputting a predetermined signal when the optical zoom device is in a tele-end position and when longer focal length is requested by the zoom operation member. An electronic still camera body and a silver salt film camera body for utilizing the zoom lens are also shown. The electronic still camera body carries out an electronic zoom operation on receiving the predetermined signal from the zoom lens. The silver salt film camera body carries out recording trimming print data onto a silver salt film on receiving the predetermined signal from the zoom lens.

REFERENCES:
patent: Re32797 (1988-12-01), Harvey
patent: 4583831 (1986-04-01), Harvey

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