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Holography Film Processing Kit JD-3 was developed and is used in the Lake Forest College holography workshops. It is highly recommended by its director, Professor Tung H. Jeong, because it not only gives superior results for both reflection and transmission holograms made on Agfa Holotest-type film and plates, but it is safer to use than JD-2 by hobbyists and schools. Unlike JD-2 it does not contain potassium dichromate and sodium bisulfate. The added post treatment using vitamin c turns the hologram to a reddish brown color which reduces scatter noise and prevents print out.