| I use traditional panchromatic films for the interpositive and an orthochromatic film for the final enlarged negative. |
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| A 1938 improvement added red-orange dye to the orthochromatic film so that only red light reached the panchromatic layer. |
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| The change increased the natural appearance of the reproduced picture, and the emulsion was called orthochromatic. |
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| The currently available orthochromatic films should be adequate for this use too, but until now I haven't done any testing with them. |
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| Even the orthochromatic films were not sensitive to red light. |
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| It was a light, semiliquid greasepaint available in jars in a precisely graduated range of tan tone, suitable for the lighting and orthochromatic film emulsion used during that period. |
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| The orthochromatic film became the blue record. |
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| Myelin-associated glycoprotein is altered in a familial late-onset orthochromatic leukodystrophy. |
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| It is a black and white film of orthochromatic sensitivity, being characterized by superb quality attributes in high contrast,super fine grain, and ultra high definition. |
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| Orthochromatic photography refers to an emulsion that is sensitive to only blue and green light, and thus can be processed with a red safelight. |
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| Orthochromatic films are not sensitive to red light at all, and may be developed under a red safelight. |
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| Orthochromatic film was only sensitive to the brightest natural light. |
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