1. An electronic camera including: a thin film photosensor array adapted to read a pattern of information incident thereon and generate a detectable electrical signal corresponding thereto; means adapted to optically project a pattern of information corresponding to an object onto said photosensor array; means for triggering the reading of the pattern of information projected onto said photosensor array and said array including a plurality of small area photoresponsive elements, each of said elements adapted to photogenerate an electrical signal in response to the illumination thereof and including at least one layer of a semiconductor alloy material chosen from the group consisting of: amorphous silicon alloy materials, amorphous germanium alloy materials, and amorphous silicon carbon alloy materials or amorphous silicon germanium alloy materials.