He then uses the wooden box again as an enlarger to make a positive print from the negative.
12.
By inventing the calotype, he could make multiple positive prints of those drawings with light from a paper negative.
13.
In negative-positive print systems, the blue sensitive layer is on the bottom, and the cyan layer is on the top.
14.
The glass negatives had to be developed in the darkroom at a later date and then printed as positive prints.
15.
The "'salt print "'was the dominant paper-based photographic process for producing positive prints during the period from 1839 through approximately 1860.
16.
The original negative of that scene had been destroyed, so the scene was salvaged from a positive print of lower quality.
17.
Other currently available films are designed to produce color negatives for use in creating enlarged positive prints on color photographic paper.
18.
They are the master images, from which all positive prints will derive, so they are handled and stored with special care.
19.
Monet sees a positive print as a reproduction, and a negative as the imprint of reality, the testimony of a microsecond.
20.
The Copyflo was a large microfilm printer which could produce positive prints on roll paper from any type of microfilm negative.
