William Henry Fox Talbot 1800-1877
Born in England
Known for inventing photogenic drawing. in 1834 "Talbot found that a sheet of fine writing paper, coated with salt and brushed with a solution of silver nitrate, darkened in the sun, and that a second coating of salt impeded further darkening or fading". In other words, Talbot found a quick and easy way to make traces of objects by using silver nitrate. Later, in 1840, Talbot found a way to reduce the exposure time needed to expose photographs to seconds; "an exposure of mere seconds, leaving no visible trace on the chemically treated paper, nonetheless left a latent image that could be brought out with the application of an "exciting liquid" (essentially a solution of gallic acid)", which he called the calotype process. This process allowed for endless subjects to be photographed because photographers no longer had to wait for the photo to expose.
Example of Photogenic drawing of a leaf:
Photos from:
http://www.google.com/imgres?imgurl=http://www.nndb.com/people/397/000098103/talbot-1-sized.jpg&imgrefurl=http://www.nndb.com/people/397/000098103/&h=279&w=347&sz=24&tbnid=UGrASXM7U1axTM:&tbnh=96&tbnw=120&prev=/images%3Fq%3DWilliam%2BHenry%2BFox%2BTalbot&zoom=1&q=William+Henry+Fox+Talbot&usg=__vsv1NDaHQbBVk0Lwcs_8Z4NVSUg=&sa=X&ei=VNBATfuWAsL48Abh4aT8Aw&ved=0CDkQ9QEwAg
http://www.edinphoto.org.uk/0_e/0_edinburgh_calotype_club_2_99_lacock_ladder.jpg
http://www.google.com/imgres?imgurl=http://cache3.asset-cache.net/xc/3091434.jpg%3Fv%3D1%26c%3DIWSAsset%26k%3D2%26d%3D45B0EB3381F7834D3189D2796D5B01EED1DAD05A022EF036E23FEF406871B787&imgrefurl=http://www.gettyimages.com/detail/3091434/Hulton-Archive&usg=__Tku-YKv_VKL4puEy76x0czaaBbY=&h=456&w=594&sz=43&hl=en&start=19&zoom=1&tbnid=2PcxVVS10RRtAM:&tbnh=148&tbnw=197&ei=HNVATc3ZHoOBlAfwqK2UAw&prev=/images%3Fq%3Dwilliam%2Bhenry%2Bfox%2Btalbot%2Bcalotype%26um%3D1%26hl%3Den%26client%3Dfirefox-a%26sa%3DX%26rls%3Dorg.mozilla:en-US:official%26biw%3D1395%26bih%3D632%26tbs%3Disch:10%2C295&um=1&itbs=1&iact=rc&dur=1517&oei=vtRATYeSNoG78ga62rDaAw&esq=2&page=2&ndsp=21&ved=1t:429,r:1,s:19&tx=89&ty=80&biw=1395&bih=632
No comments:
Post a Comment