calotype

American  

[kal-uh-tahyp] / ˈkæl əˌtaɪp /

noun

1. an early negative-positive photographic process, patented by William Henry Talbot in 1841, in which a paper negative is produced and then used to make a positive contact print in sunlight.

2. a print made by this process.

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calotype British  

/ ˈkæləʊˌtaɪp /

noun

1. an early photographic process invented by W. H. Fox Talbot, in which the image was produced on paper treated with silver iodide and developed by sodium thiosulphite

2. a photograph made by this process

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Etymology

Origin of calotype

1835–45; < Greek kalo- (combining form of kalós beautiful) + -type

Example Sentences

Throughout his career, Murray used paper negatives and the calotype process - a technique of creating "positive" prints from one negative - to produce his images.

From BBC

Biggs experimented with the calotype process, producing "positive" prints from one negative.

From BBC

Fox Talbot's image of the cat was made by creating "positive" prints from one negative - a technique he called the calotype process, after the Greek word "kalos", meaning beauty.

From BBC

Daguerreotypes were unique artefacts; Talbot’s calotype was a paper negative that could yield any number of positive copies.

From Economist

Polymath William Henry Fox Talbot began the history of British photography with the invention of his "calotype" process, patented in February 1841.

From BBC