Photo-voltaic trigger system

A trigger system including a photosensor having a polarizing light filter n positioned in a light receiving end of a housing. A lens is disposed in the housing for focusing light onto a transducer. A switch is electronically coupled to the transducer for selecting either a passive or active mode. In the active mode, a light source is directed at the photosensor, whereby a trigger signal is generated when an object disrupts the received light. In the passive mode, an opaque screen is spaced from the photosensor and a source of light is directed at the opaque screen, whereby a trigger signal is generated from the light reflected from an object positioned between the screen and photosensor. The trigger system may be electronically linked to a photographic system for high speed or action photography.