Exhibition photochromes late 19th - early 20th century
• Exhibition photochromes late 19th - early 20th century,
Photochromic - a color images that were created by retouching black-and-white negatives at a time when color photography was not yet invented. The museum of photographic Swiss Camera Museum in Vevey, Switzerland, opened the exhibition "A Tour of the World in Photochromes", which presents more than 500 photochromes. The exposition will last till August 21.
Women in Algeria, 1899.
Photochromic - a method of creating color images based on black-and-white negatives. The process allowed to create color images to the invention a color photograph.
Ribeira Square, Porto, Portugal, around 1903.
Photochromic process was developed in the 1880s Swiss chemist Jacob Hans Schmidt (Hans Jakob Schmid).
Staubbach, Lauterbrunnen, Switzerland, around 1900.
When creating photochrome fixed color present at the scene being photographed, which are then manually applied to the image by retouching.
Al-Zaytuna Mosque in Tunisia, 1896.
In the process of photochromes polished plate-used limestone coated photosensitive material. Black-and-white negative plate superimposed on the limestone, and then exposed to daylight.
The Rhine Falls, about 1890.
Photosensitive material hardens under the influence of daylight. The lighter was an area of negativity, the more hardened portion of the photosensitive material underneath.
Guria, Georgia, in 1904.
Uncured portions of the photosensitive material is removed by washing the plate with turpentine.
Landings in Algiers, Algeria, in 1896.
Naples, Italy, 1899.
Photochromic created using at least six different colors of stones.
Castle Munot in Schaffhausen, Switzerland, 1893.
Schmid company has patented the process and established an enterprise Photoglob Zurich, specialized in making photochromes.
Cameleers Desert, 1895.
Photochromic quickly gained popularity. A particular success enjoyed postcards started by photochromic.
The men smoked hookahs outside a coffee shop in Istanbul, Turkey, 1897.
The invention of color photography put an end to the era photochromes.
A street in the old part of the city in Biskra, Algeria, approximately 1900.
Today photochromic are very popular with collectors.