1. A large field, low intensity, radiation imaging system, comprising: grid means for receiving a large field, low intensity, radiation image and for removing scattered radiation therefrom; means responsive to said grid means for converting said radiation image into a visible light image; a plurality of light conductive fibers each having an input end and an output end, said input ends being separated a discrete distance from one another and being in substantial registration with said grid means for conducting said visible light image, said output ends being substantially adjacent to one another to thereby effect size reduction of said visible light image; means for intensifying said reduced visible light image; and means for outputting said intensified image.