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

Derived Forms

• orthochromatism
  noun

Etymology

Origin of orthochromatic

First recorded in 1885–90; ortho- + chromatic

Example Sentences

He had devised a solution that could keep her blue eyes from turning white on camera, a problem caused by the blue-sensitive orthochromatic film used at the time.

From New York Times • May 27, 2022

So it wasn’t as aggressively orthochromatic as the film stock of early cinema.

From The Verge • Oct. 18, 2019

And we used a filter to create more of an orthochromatic look.

From The Verge • Oct. 18, 2019

You spoke at the Q&A about using orthochromatic film, which I had to look up.

From The Verge • Oct. 18, 2019

It should first be pointed out, however, that what we are discussing is quite different from the simple "orthochromatic" plates which are used by many photographers.

From Marvels of Scientific Invention An Interesting Account in Non-technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-date Smelting, Freezing, Colour Photography, and many other recent Discoveries of Science by Corbin, Thomas W.