In the 1880s, photography was becoming an art medium - mechanical and commonplace. Stieglitz will immediately behind adopting Emerson and his subjects, and platinum, which provides a rich matte proof in halftone. In 1889, Emerson asked Stieglitz to translate into German his recently published polemic, Naturalistic Photography, which has a high profile. Attached to the locomotive Emerson, continues to show Stieglitz photograph, pick up in prices, in international journals. It is this tendency photographic strongly opposed to the trend found when the documentary-United States, where Stieglitz will fight on his return from Europe.