Nearby Words

Halation

[hey-ley-shuhn, ha-]

ha·la·tion

[hey-ley-shuhn, ha-]
noun Photography.
a blurred effect around the edges of highlight areas in a photographic image caused by reflection and scattering of light through the emulsion from the back surface of the film support or plate.

Origin:
1855–60; hal(o) + -ation
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Halation is always a great word to know.
So is director of photography. Does it mean:
one of the successive pictures on a strip of film
the person who is responsible for all operations concerning camera work and lighting during the production of a film
Collins
World English Dictionary
halation (həˈleɪʃən)
 
n
photog fogging usually seen as a bright ring surrounding a source of light: caused by reflection from the back of the film
 
[C19: from halo + -ation]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

halation ha·la·tion (hā-lā'shən)
n.

  1. Blurring of the visual image due to glare from strong illumination.

  2. A blurring or spreading of light around bright areas on a photographic image.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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