Calotype

Calotype or talbotype is an early photographic process introduced in 1841 by William Henry Fox Talbot,[1] using paper[2] coated with silver iodide. The term calotype comes from the Ancient Greek καλός (kalos), "beautiful", and τύπος (tupos), "impression".

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
A salted paper calotype photograph of Scottish amateur golfer, golf administrator, and aristocrat James Ogilvie Fairlie, c.1846–49
William Henry Fox Talbot, by John Moffat, 1864