Computer-generated holograms refer to a class of holograms which are produced as a graphical output from a computer. This paper investigates the relation. ship between the resolution in the system used to re duce the graphical artwork to a reasonable size for diffracting light and the quality of the reconstructed hologram. A number of reduction schemes are examined including a one-step reduction onto a general purpose film, a one-step reduction onto a high resolution film and a two-step reduction scheme using coherent illumination during the second reduction
