Acid-free materials, such as mount boards, are essential in preventing acid burns, which are yellowish-brown discolorations that can appear on artworks over time. Using acid-free mount boards helps preserve the integrity and appearance of the artwork by providing a stable, non-reactive environment that prevents the acidic degradation that causes these burn lines.
Toning Toning is a photographic process used to alter the colors of a black and white print by replacing the silver in the silver salts with another metal, such as gold, selenium, or platinum. This process can serve both aesthetic and practical purposes. Artists may use toning to achieve desired color effects, while it can…
A Lambda print is produced using one of the highest quality digital printers available. This printer utilizes three lasers (red, green, and blue) to print digitized images onto traditional photographic paper, typically C-type paper. The process ensures consistent reproduction of large run editions, maintaining the same quality as traditional print techniques. The precision of the…
A print is a method of image-making that allows the work of art to be created multiple times. The value of a print can be influenced by several factors, including the size of the edition (the number of prints produced of one work), the significance of the work within the artist’s oeuvre, the condition of…
A negative is a sheet of transparent film coated with silver salts that react when exposed to light, typically within a camera. In black and white negatives, a single layer of silver salts reacts to white light (the full spectrum of light), resulting in an image where shadows appear light and highlights appear dark, effectively…
Also known as heliogravure, photogravure is considered one of the finest photomechanical methods for reproducing photographs in large editions. The process involves acid-etching copper plates directly from an original silver print. The etched areas of the plate hold varying amounts of ink, corresponding to the tones of the original photograph. Key characteristics of photogravure prints…
Cibachrome, also known as Ilfochrome, is a specific type of reversal (R-type) color paper and printing process renowned for producing vibrant and long-lasting prints. This process is unique because it prints directly from a positive image (such as a slide or transparency), resulting in color saturation that matches the original image and often provides greater…
Silver Salts Silver salts are light-sensitive chemical compounds used in photography. When exposed to light—either in a camera (for film and negatives) or in the darkroom (for photographic papers)—the silver salts darken in proportion to the amount of light reflected from the subject, creating an image. Silver Bromide Print Silver bromide prints are a type…
The autochrome is an early color photography process patented on December 17, 1903, by Auguste and Louis Lumière. Before its commercialization in 1907, the Lumière brothers shared the autochrome technique with select photographers, such as Sergey Prokudin-Gorsky. The process was widely used from 1907 until about 1932, notably for many photographs of the First World…