All photographic emulsions have a small time gap between the beginning of an exposure and when the image starts to appear.

A straightforward example of this is photographic emulsion on a transparent substrate.

With proper knowledge, however, any good chemist could make a photographic emulsion which would record their images.

Among his accomplishments was the development of sensitive photographic emulsions for use in astronomy.

Beginning in the 1850s, thin glass plates coated with photographic emulsion became the standard medium.

With the limited sensitivity of photographic emulsions at the time, these striking pictures were rightly considered a technical triumph.

These parasites will attack the gelatin in the photographic emulsion.

The Images were made with liquid photographic emulsion and oil paint, using the original anamorphic camera negatives from the film.

Coincidentally at this same time a new panchromatic photographic emulsion was developed that allowed the full range of colors to be captured.

The change in color depends upon the chemical make-up of the photographic emulsion being toned.