Ambrotype

Rarity: Common

The most frequent rarity: most Wikipedia articles become Commons.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Notion

Domain

Science and technology

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What Wikipedia says

The ambrotype, also known as a collodion positive in the United Kingdom, is a positive photograph on glass made by a variant of the wet plate collodion process. As a cheaper alternative to the French daguerreotype, ambrotypes came to replace them. Like a print on paper, it is viewed by reflected light.

Excerpt from the Wikipedia article “Ambrotype”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Unknown author, CC0, via Wikimedia Commons.