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A lamp having one or more color filters allowing moderate darkroom illumination without affecting photosensitive film or paper.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Photography) photog a light that can be used in a room in which photographic material is handled, transmitting only those colours to which a particular type of film, plate, or paper is relatively insensitive
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014



a darkroom light with a filter that transmits only those rays of the spectrum to which films, printing paper, etc., are not sensitive.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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This was juxtaposed with a succession of damp darkrooms festooned with obsessive photographic documentation of the town, and washed with deep red 'safelights'.
Standing naked in a darkroom, surrounded by power tools and paper towels, I effectively transformed a disused black hole into a useful red-light (safelights) womb/wound, the resulting wet traces of which were then hung, impaled, and sculpted throughout the rest of the installation.
n TRADITIONAL TECHNIQUES Studio development co-ordinator Brett Fletcher (left) looks through some of the photographic negatives with student Jim Taylor and (inset) work is carried under the red glow of the darkroom safelights