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| Schwärzungskurve f (e.g. of an X-ray film) | |||
| charakteristische Kurve (e.g. of an X-ray film); Gradationskurve f (e.g. of an X-ray film) | |||
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| Gradationskurve f (obtained by plotting optical density D against common logarithm of exposure E); charakteristische Kurve (obtained by plotting optical density D against common logarithm of exposure E); S-Kurve n; Schwärzungskurve f (obtained by plotting density against log exposure); fotografische Schwärzungskurve (obtained by plotting optical density D against common logarithm of exposure E) | |||
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| Gradationskurve f; Schwaerzungskurve f; photographische Schwaerzungskurve | |||
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D log E curve : 2 phrases in 1 subject |
| Optics branch of physics | 2 |