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06-11-2017, 12:15 AM
Spectacular postcards capture 1890s France in vibrant color
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The Eiffel Tower and the Trocadero.
Image: Library of Congress
These postcards of France in the last years of the 19th century were created using the Photochrom process, a technique by which black-and-white photos were imbued with vibrant and lifelike color.
Invented in the 1880s by a Swiss printer, the Photochrom process began with coating a tablet of lithographic limestone with a light-sensitive emulsion and exposing it to sunlight under a photo negative for several hours.
The emulsion would then harden in proportion to the tones of the negative, resulting in a fixed lithographic image on the tablet. Read more... (http://mashable.com/2017/06/10/photochroms-of-france/?utm_campaign=Mash-Prod-RSS-Feedburner-All-Partial&utm_cid=Mash-Prod-RSS-Feedburner-All-Partial)
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The Eiffel Tower and the Trocadero.
Image: Library of Congress
These postcards of France in the last years of the 19th century were created using the Photochrom process, a technique by which black-and-white photos were imbued with vibrant and lifelike color.
Invented in the 1880s by a Swiss printer, the Photochrom process began with coating a tablet of lithographic limestone with a light-sensitive emulsion and exposing it to sunlight under a photo negative for several hours.
The emulsion would then harden in proportion to the tones of the negative, resulting in a fixed lithographic image on the tablet. Read more... (http://mashable.com/2017/06/10/photochroms-of-france/?utm_campaign=Mash-Prod-RSS-Feedburner-All-Partial&utm_cid=Mash-Prod-RSS-Feedburner-All-Partial)
More about History (http://mashable.com/category/history/?utm_campaign=Mash-Prod-RSS-Feedburner-All-Partial&utm_cid=Mash-Prod-RSS-Feedburner-All-Partial), Retronaut (http://mashable.com/retronaut/?utm_campaign=Mash-Prod-RSS-Feedburner-All-Partial&utm_cid=Mash-Prod-RSS-Feedburner-All-Partial), France (http://mashable.com/category/france/?utm_campaign=Mash-Prod-RSS-Feedburner-All-Partial&utm_cid=Mash-Prod-RSS-Feedburner-All-Partial), Paris (http://mashable.com/category/paris/?utm_campaign=Mash-Prod-RSS-Feedburner-All-Partial&utm_cid=Mash-Prod-RSS-Feedburner-All-Partial), and Photochrom (http://mashable.com/category/photochrom/?utm_campaign=Mash-Prod-RSS-Feedburner-All-Partial&utm_cid=Mash-Prod-RSS-Feedburner-All-Partial)http://pubads.g.doubleclick.net/gampad/ad?iu=/6692/mash.to/rss&pos=atf&tag=ad&mtype=standard&type=rss&sz=300x250&c=1497126731 (http://pubads.g.doubleclick.net/gampad/jump?iu=/6692/mash.to/rss&pos=atf&tag=ad&mtype=standard&type=rss&sz=300x250&c=1497126731)
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