Calotype
![William Henry Fox Talbot, by John Moffat, 1864](/Images/godic/202501/02/William_Henry_Fox_Talbot,_by_John_Moffat,_18642916.jpg")
![Thomas Duncan, by Hill & Adamson, c. 1844; medium: calotype print, size: 19.60 x 14.50 cm; from the collection of the National Galleries of Scotland](/Images/godic/202501/02/Thomas_Duncan,_1807_-_18452916.jpg")
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Calotype or talbotype is an early photographic process introduced in 1841 by William Henry Fox Talbot, using paper coated with silver iodide. The term calotype comes from the Greek καλός (kalos), "beautiful", and τύπος (tupos), "impression".