Patent ID: 8068166

Claim:
A zoom camera with manual focus function for performing focus adjustment by using a trace curve, said camera comprising: an optical system having a zoom adjustment mechanism, an aperture adjustment mechanism and a focus adjustment mechanism; an image pickup element for electrical conversion of light which passed through said optical system; an automatic gain control circuit for amplifying an output of said image pickup element to a predetermined value; temperature measurement means for detecting a temperature of the element; and control means for enlarging an aperture value of said aperture adjustment mechanism when the temperature detected by said temperature measurement means is greater than or equal to a first setup value or, alternatively, less than or equal to a second setup value which is different from the first setup value and which is lower than the first setup value and when a zoom magnification in said manual focus function is greater than or equal to a prespecified magnification, said prespecified magnification is 24× or higher.