History of Photography Types Flashcards
Dates and types of early processes
What is a Heliograph?
Suh Drawing. Example View from Window at La Gras - Nicephore Niepce 1826-27
What is a Daguerreotype?
a photograph taken by an early photographic process employing an iodine-sensitized silvered plate and mercury vapor. ca. 1839 invented by Louis-Jacque-Mande-Daguerre.
What is a Calotype?
an early photographic process in which negatives were made using paper coated with silver iodide. Calotype or talbotype is an early photographic process introduced in 1841 by William Henry Fox Talbot, using paper coated with silver iodide.
What is a Cyanotype?
Cyanotype is a photographic printing process that produces a cyan-blue print. Engineers used the process well into the 20th century as a simple and low-cost process to produce copies of drawings, referred to as blueprints. The process uses two chemicals: ferric ammonium citrate and potassium ferricyanide.The English scientist and astronomer Sir John Herschel discovered the procedure in 1842.
What is an albumen print?
The albumen print, also called albumen silver print, was published in January 1847 by Louis Désiré Blanquart-Evrard, and was the first commercially exploitable method of producing a photographic print on a paper base from a negative.
What is an Ambrotype?
Ambrotype. The ambrotype is a direct positive monochrome photographic process. It is a wet collodion glass plate negative which when viewed against a dark background looks like a positive photograph. The ambrotype was introduced in the 1850s. One side of a clean glass plate was coated with a thin layer of iodized collodion, then dipped in a silver nitrate solution. The plate was exposed in the camera while still wet. The ambrotype was based on the wet plate collodion process invented by Frederick Scott Archer. Ambrotypes were deliberately underexposed negatives made by that process and optimized for viewing as positives instead.[2] In the US, ambrotypes first came into use in the early 1850s. In 1854, James Ambrose Cutting of Boston took out several patents relating to the process. He may be responsible for coining the term “ambrotype”.
What is the dry collodion process?
The collodion process is said to have been invented in 1851, almost simultaneously, by Frederick Scott Archer and Gustave Le Gray. … During the 1880s, the collodion process was largely replaced by gelatin dry plates—glass plates with a photographic emulsion of silver halides suspended in gelatin.
What is an Ambrotype?
The ambrotype (from Ancient Greek: ἀμβροτός — “immortal”, and τύπος — “impression”) or amphitype, also known as a collodion positive in the UK, is a positive photograph on glass made by a variant of the wet plate collodion process. Like a print on paper, it is viewed by reflected light. (early 1850s–1880s) In this week’s post about dating you r photographs, Colin Harding shows you how to identify
What is a tintype?
The tintype was developed in 1853 using a similar technique to the ambrotype. Called a collodion process, this technique requires the photographic material to be coated, exposed, and developed on site.
The tintype image, however, was mounted against a thin sheet of black-enameled (or japanned) iron instead of glass. Unlike earlier photographs, a tintype is unbreakable.
