DX code
Related to DX code: NPI
DX code
n
(Photography) photog a code on a film cassette that automatically adjusts the film-speed setting on a suitably equipped camera to the correct ISO rating
[C20: from d(aylight) (e)x(posure)]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014