Name Amon First

Tirage au gélatino-chlorure d'argent développé

After the introduction of gelatin dry plate negative emulsions during the 1870s, a series of ready to use photosensitive papers went on sale. They received an emulsion coating for developing the underlying picture that was more sensitive than the ones used during the previous period where pictures were obtained by darkening through exposure to light. Offering greater ease of use and new applications, their introduction marks the opening of the modern photography era.

This gelatin silver chloride paper was produced for the first time in Vienna, in 1881, by photochemists Eder and Pizzighelli. Given its lower sensitivity than that of silver bromide emulsions, it offers the advantage that it can be developed under gaslight without fogging, hence it was referred to as "gaslight paper".

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