Daguerreotype in the context of "Frank Leslie's Illustrated Newspaper"

Photographic plates preceded film as the primary medium for capturing images in photography. These plates, made of metal or glass and coated with a light-sensitive emulsion, were integral to early photographic processes such as heliography, daguerreotypes, and photogravure. Glass plates, thinner than standard window glass, became widely used in the late 19th century for their clarity and reliability. Although largely replaced by film during the 20th century, plates continued to be used for specialised scientific and medical purposes until the late 20th century.

Mathew B. Brady (c. May 18, 1822 – January 15, 1896) was an American photographer. Known as one of the earliest and most famous photographers in American history, he is best known for his scenes of the American Civil War. He studied under inventor Samuel Morse, who pioneered the daguerreotype technique in America. Brady opened his own studio in New York City in 1844, and went on to photograph U.S. presidents John Quincy Adams, Abraham Lincoln, Millard Fillmore, Martin Van Buren, and other public figures.

When the Civil War began, Brady's use of a mobile studio and darkroom enabled thousands of vivid battlefield photographs to bring home the reality of war to the public. He also photographed generals and politicians on both sides of the conflict, though most of these were taken by his assistants rather than by Brady himself.

A portrait miniature is a miniature portrait painting from Renaissance art, usually executed in gouache, watercolor, or enamel. Portrait miniatures developed out of the techniques of the miniatures in illuminated manuscripts, and were popular among 16th-century elites, mainly in England and France, and spread across the rest of Europe from the middle of the 18th century, remaining highly popular until the development of daguerreotypes and photography in the mid-19th century. They were usually intimate gifts given within the family, or by hopeful males in courtship, but some rulers, such as James I of England, gave large numbers as diplomatic or political gifts. They were especially likely to be painted when a family member was going to be absent for significant periods, whether a husband or son going to war or emigrating, or a daughter getting married.

The first miniaturists used watercolour to paint on stretched vellum, or (especially in England) on playing cards trimmed to the shape required. The technique was often called limning (as in Nicolas Hilliard's treatise on the Art of Limming of c. 1600), or painting in little. During the second half of the 17th century, vitreous enamel painted on copper became increasingly popular, especially in France. In the 18th century, miniatures were painted with watercolour on ivory, which had now become relatively cheap. As small in size as 40 mm × 30 mm, portrait miniatures were often fitted into lockets, inside watch-covers or pieces of jewellery so that they could be carried on the person. Others were framed with stands or hung on a wall, or fitted into snuff box covers.

Microphotographs are photographs shrunk to microscopic scale. Microphotography is the art of making such images. Applications of microphotography include espionage such as in the Hollow Nickel Case, where they are known as microfilm.

Using the daguerreotype process, John Benjamin Dancer was one of the first to produce microphotographs, in 1839.He achieved a reduction ratio of 160:1. Dancer perfected his reduction procedures with Frederick Scott Archer's wet collodion process, developed in 1850–51, but he dismissed his decades-long work on microphotographs as a personal hobby, and did not document his procedures. The idea that microphotography could be no more than a novelty was an opinion shared by the 1858 Dictionary of Photography, which called the process "somewhat trifling and childish."

The albumen print, also called albumen silver print, is a method of producing a photographic print using egg whites. Published in January 1847 by Louis Désiré Blanquart-Evrard, it was the first commercial process of producing a photo on a paper base from a negative, previous methods—such as the daguerreotype and the tintype—having been printed on metal. It became the dominant form of photographic positives from 1855 to the start of the 20th century, with a peak in the 1860–1890 period. During the mid-19th century, the carte de visite became one of the more popular uses of the albumen method. In the 19th century, E. & H. T. Anthony & Company were the largest makers and distributors of albumen photographic prints and paper in the United States.

Louis-Jacques-Mandé Daguerre (/dəˈɡɛər/ də-GAIR; French: [lwi ʒɑk mɑ̃de daɡɛʁ]; 18 November 1787 – 10 July 1851) was a French scientist, artist and photographer recognized for his invention of the eponymous daguerreotype process of photography. He became known as one of the fathers of photography. Though he is most famous for his contributions to photography, he was also an accomplished painter, scenic designer, and a developer of the diorama theatre.

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. Like the daguerreotype or the prints produced by a Polaroid camera, each is a unique original that could only be duplicated by using a camera to copy it.

The ambrotype was introduced in the 1850s. During the 1860s it was superseded by the tintype, a similar photograph on thin black-lacquered iron, hard to distinguish from an ambrotype if under glass.