1.) Any image with tones that are the reverse of those in the subject.
Opposite: positive. 2.) The film is the camera during
exposure that is subsequently developed to produce a negative image.
carrier: A frame that holds
a negative flat in an enlarger.
film: Film that produces
a negative image on exposure and development.
process: A film process
that does not depend on the sensitivity of silver to form an image;
for example, the cyanotype process, in which the light sensitive
emulsion consists of a mixture of iron salts.
lens: A lens whose focal
length is about the same as the diagonal measurement of the film
with which it is used. The angle of view with this lens-film size
combination is roughly the same at a given distance as the angle
that the human eye sees clearly.
code: Notches cut in the
margin of sheet film so that the type of film and its emulsion side
can be identified in the dark.