Patent ID: 6731339
Filing Date: 2004-05-04
Classification: G03B,H04N

Abstract:
A lens device interchangeable to a camera body comprising:variator lens means for performing a magnification varying action; compensator lens means for correcting a focus condition; lens-side operation ring member provided in said lens unit, operable by a user for causing the magnification varying action to be performed; and control means for controlling the magnification varying action by moving said variator lens means and said compensator lens means along an optical axis according to an operation of said operation ring member and according to a control signal output by camera-side operation means supplied from said camera body, wherein said control means is arranged to give a priority to a control of said variator lens means by the operation of said lens-side operation ring member over the control by the control signal output from said camera-side operation member supplied from said camera body and controls a driving speed of said variator lens means in response to an operation speed of said operation ring member.