Fotoğrafçılık: Revizyonlar arasındaki fark

[[Dosya:Nicéphore Niépce Oldest Photograph 1825.jpg|thumb|196px|sağ|Earliest known surviving heliographic engraving, 1825, printed from a metal plate made by [[Joseph Nicéphore Niepce]] with his [[Heliography|"heliographic process"]].<ref name="utexas">{{Web kaynağı | başlık = The First Photograph — Heliography | url = http://www.hrc.utexas.edu/exhibitions/permanent/wfp/heliography.html | alıntı = from Helmut Gernsheim's article, "The 150th Anniversary of Photography," in History of Photography, Vol. I, No. 1, January 1977: ...In 1822, Niépce coated a glass plate... The sunlight passing through... This first permanent example... was destroyed... some years later. | erişimtarihi = 29 Eylül 2009 | arşivurl = httphttps://web.archive.org/web/20130206133742/http://www.hrc.utexas.edu/exhibitions/permanent/wfp/heliography.html | arşivtarihi = 6 Şubat 2013 | ölüurl = yes }}</ref> The plate was exposed under an ordinary engraving and copied it by photographic means. This was a step towards the first permanent photograph from nature taken with a camera obscura, in 1826.]]