Abstract: A method of producing a latent photograph by using a reproduction of the photograph in both negative and positive form, photographing both negative and positive in sequence and in register through a dark screen, having extremely small apertures and angled 30.degree. and 60.degree. in respect to the upper margin, the resulting latent photograph having a visual effect of being smooth and continuous is a reflection of the size and shape of the dots, lines, or tones, of both positive and negative reproductions, but reduced in size and changed in shape by the small apertures of the dark screen when photographed at two angles 30.degree.