In 1841 photography pioneer Henry Talbot patented the calotype, slashing this time to minutes
The image shows a street, but because of the over ten minute 
exposure time the ..... two of the earliest photographic studios in the US, between 
1841 and 1843, but ...... pioneer WIlliam Henry Fox Talbot (1800-1877) invented 
the calotype... [DOC] [TLE] The Tintype in America 1856-1880 - JStor [PAR] Apr 19, 2002 ... 8 received the first U.S. patent in photography for a camera that made ... On 
January 25,1839, the Englishman William Henry Fox Talbot ... exposure time to 
ten minutes by increasing the sensitivity of the .....