Filtros Ilford Cibachrome-A en Fotocasión.
«The composition of the emulsion used in Ilfochrome prints is responsible for color purity, image clarity, and being archival. Azo dyes, which provide stable vivid colors, are embedded in the Ilfochrome emulsion are bleached out in processing. Since the dyes are in the emulsion rather than in the chemistry, the image is also much sharper and clearer because the dyes create an anti-light scattering layer which keeps the reflected image from being diffused when viewed. As the colors formed from the azo dye are far more stable, the prints made from the process are archival and insisted on by galleries and art collectors as they will not fade in normal light.» (from http://en.wikipedia.org/wiki/Ilfochrome)
