Colour photographs from the First World War

Speigel Online has made available on the internet colour photographs taken during the First World War by German photographer Hans Hildenbrand and French photographer Jule Gervais-Courtellemont. The link:

http://www.spiegel.de/fotostrecke/fotostrecke-37025.html

Please note that probably all photos containing people were posed due to the very slow emulsions that required long exposure time.

Awesome.

Some information on the Autochrome process here:
http://users.telenet.be/thomasweynants/autochromes.html

Another common way to do colour photography at that time was to use filters and take multiple shots. A photographer would take the same shot with a red filter, a blue filter and then a green filter ending up with three filtered negatives. Then the same filters were used to project red, blue and green light through the negatives. The projected images converged together onto a screen (like a slide) resulting in a colour image. Sergei Prokudin-Gorskii, the photographer to Tsar Nicolas II of Russia, largely developed this technique.

Some info:
http://www.gridenko.com/pg1/index.htm

To me, Prokudin-Gorskii's method gave the best results at this time.

Uzbekistanian prison taken in 1907:
http://upload.wikimedia.org/wikipedia/commons/1/1a/Prokudin-Gorsky_1907_prison.jpg

Monastary of St. Nilus in 1910:
http://upload.wikimedia.org/wikipedia/commons/8/80/Prokudin-Gorskii-09-edit2.jpg

Prokudin-Gorskii's self portrait taken sometime before 1915:
http://upload.wikimedia.org/wikipedia/commons/8/87/Prokudin-Gorskii-12.jpg

Portrait of Crown Prince Alim Khan of Bukhara (apparently, a descendant of Genghis Khan).
http://upload.wikimedia.org/wikipedia/commons/3/33/Prokudin-Gorskii-19.jpg

Yah I have seen some of the Russian ones before... they are incredible.