A transparency consists of three layers of emulsion, sensitivity of each layer, and the relationships of the layers to each other, vary between films from different manufacturers-just as coffee, cigarettes, washing powder and any other product varies between brands. In general the transparency shows color with greater brilliance and accuracy than the color print. Even so the overall color balance varies between different makes. Of all the ways of producing a photographic image the transparency requires most skill at the initial stages. Transparencies can record detail over a constant ratio of very much less than the eye can perceive-and prints record an even lesser ratio than transparencies. So, on a glaringly bright day a great deal of detail will be lost if the scene we are photographing contains large areas of both brightness and darkness. Take our photograph so that there is a preponderance of either highlight or shadow, then there will not be huge areas devoid of anything interesting.
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