orthochromatismn.

Brit.

/ˌɔːθəʊˈkrəʊmətɪz(ə)m/, U.S.

/ˌɔrθoʊˈkroʊməˌtɪz(ə)m/

Origin: Formed within English, by derivation. Etymons: orthochromatic adj., -ism suffix.

Etymology: < orthochromat- (in orthochromatic adj.) + -ism suffix. Compare French orthochromatisme (1891 or earlier).

Photography. Now rare.

The condition of being orthochromatic (orthochromatic adj. 1).

ΘΚΠ

the world > matter > colour > colour relationships > [noun] > true relationship

orthochromatism1889

society > leisure > the arts > visual arts > photography > a photograph > qualities and effects > [noun] > other qualities and effects

ghost1851

solarization1853

flare1867

bronzing1868

ghost image1872

shine1880

orthochromatism1889

false image1892

flare-spot1893

halo1941

acutance1952

1889 Internat. Ann. Anthonys Photogr. Bull. 315 In order to obtain true orthochromatism it is always necessary..to interpose a transparent yellow screen somewhere between the object and the plate in order to cut off a certain proportion of the blue and violet rays, to which the plates still remain relatively too sensitive.

1906 Westm. Gaz. 5 May 14/2 The student of orthochromatism will find a useful object-lesson in a selection of flowers of a good variety of colours.

1922 Glasgow Herald 26 July 6 We may be sure that Kodak film would not be fully orthochromatised unless orthochromatism had much to recommend it for all-round use.

1939 H. Parker in K. Henney & B. Dudley Handbk. Photogr. vi. 131 The degree of orthochromatism, or the ratio of green to blue sensitivity varies considerably among the many materials available.

2002 Re: Emulsion Formulas in alt-photo-process (Usenet newsgroup) 3 Jan. ISO 125 is a very challenging target, as is panchromatism (or even orthochromatism).

This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022).

单词	orthochromatism
释义	orthochromatismn. Brit. /ˌɔːθəʊˈkrəʊmətɪz(ə)m/, U.S. /ˌɔrθoʊˈkroʊməˌtɪz(ə)m/ Origin: Formed within English, by derivation. Etymons: orthochromatic adj., -ism suffix. Etymology: < orthochromat- (in orthochromatic adj.) + -ism suffix. Compare French orthochromatisme (1891 or earlier). Photography. Now rare. The condition of being orthochromatic (orthochromatic adj. 1). ΘΚΠ the world > matter > colour > colour relationships > [noun] > true relationship orthochromatism1889 society > leisure > the arts > visual arts > photography > a photograph > qualities and effects > [noun] > other qualities and effects ghost1851 solarization1853 flare1867 bronzing1868 ghost image1872 shine1880 orthochromatism1889 false image1892 flare-spot1893 halo1941 acutance1952 1889 Internat. Ann. Anthonys Photogr. Bull. 315 In order to obtain true orthochromatism it is always necessary..to interpose a transparent yellow screen somewhere between the object and the plate in order to cut off a certain proportion of the blue and violet rays, to which the plates still remain relatively too sensitive. 1906 Westm. Gaz. 5 May 14/2 The student of orthochromatism will find a useful object-lesson in a selection of flowers of a good variety of colours. 1922 Glasgow Herald 26 July 6 We may be sure that Kodak film would not be fully orthochromatised unless orthochromatism had much to recommend it for all-round use. 1939 H. Parker in K. Henney & B. Dudley Handbk. Photogr. vi. 131 The degree of orthochromatism, or the ratio of green to blue sensitivity varies considerably among the many materials available. 2002 Re: Emulsion Formulas in alt-photo-process (Usenet newsgroup) 3 Jan. ISO 125 is a very challenging target, as is panchromatism (or even orthochromatism). This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022). < n.1889
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