Camera with battery testing device

An improvement in a camera having a lens, a first photosensitive element for measuring the level of light incident thereon, a battery and circuit means for operably connecting said element and said battery, said circuit means including a warning lamp and first trigger means, wherein said improvement comprises actuation means having a closed position, an open position and a battery-test position, said circuit means including switch means for selectively connecting said battery across said warning lamp and first trigger means in series, said actuation means being so constructed that in said closed position said element is screened from all sources of light and said switch means is open, in said open position said lens and element are exposed to incident light and said switch means is open, and in said battery-test position said element is screened from all sources of light and said switch means is closed for connecting said warning lamp and first trigger means in series with said battery, and for rendering said first trigger means conductive so that said battery can drive current through said warning lamp, said warning lamp being positioned so that light output therefrom is visible when said actuation means is in said battery-test position, the light output of said warning lamp serving to indicate the state of charge of said battery.