orthochromatic

American  

[awr-thuh-kroh-mat-ik, -thoh-kruh-] / ˌɔr θə kroʊˈmæt ɪk, -θoʊ krə- /

adjective

Photography.

1. representing correctly the relations of colors as found in a subject; isochromatic.

2. (of an emulsion) sensitive to all visible colors except red; isochromatic.

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orthochromatic British  

/ ˌɔːθəʊˈkrəʊməˌtɪzəm, ˌɔːθəʊkrəʊˈmætɪk /

adjective

1. Sometimes shortened to: ortho.  photog of or relating to an emulsion giving a rendering of relative light intensities of different colours that corresponds approximately to the colour sensitivity of the eye, esp one that is insensitive to red light Compare panchromatic

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Other Word Forms

• orthochromatism
  noun

Etymology

Origin of orthochromatic

First recorded in 1885–90; ortho- + chromatic

Example Sentences

Orthochromatic, or-thō-krō-mat′ik, adj. correct in rendering the relation of colours, without the usual photographic modifications.

From Chambers's Twentieth Century Dictionary (part 3 of 4: N-R) by Various

Orthochromatic results exhibited by Dixon and Sons at the photographic exhibition in October.

From The Evolution of Photography With a Chronological Record of Discoveries, Inventions, etc., Contributions to Photographic Literature, and Personal Reminescences Extending over Forty Years by Werge, John