Article analyzes a practical case in which the use of RAW file, thanks to its greater depth of color, allows the exploration of areas of a photograph that in format .jpg would be lost.
Color Depth in digital image files
Article explains why and how color-depth concept is necessary to express the array of different colors a digital system can handle. It clarifies why it must be expressed in bits, what that means in terms of color differentiation, when true-color is reached and why sometimes more than true color...
Landscape Lens | Hermagis
Made in the nineteenth century this lens is a simple achromatic doublet and follows the same constructive principle of the lenses used by Daguerre in his first photographs.
Traité elementaire de l’objectif photographique | Étienne Wallon
A very complete treatise on photographic lenses. It starts with refraction and follows with formulas for spherical lenses, types of aberration, ways of correcting them and in the most practical part it cites the main families of lenses, their manufacturers, and goes down to the surface radii for...
Photographic Lenses of the 1800’s in France | Corrado d’Agostini
Excellent book plenty of information about the optical industry in France in the 19th century. It has large and clear photos very helpful in the identification old lenses. Lots of information about manufacturers and leading industry’s opticians. Corrado D’Agostini is professor of...
Eyes wide open – 100 years of Leica Photography | Photo España 2017
Exhibition Review: discusses relationships between the technical features of the legendary Leica camera with aesthetics and new subjects in history of photography.
Daguerréotype | several authors
Contemporary print of the main texts that marked the announcement of the Daguerreotype in 1839. It contains speeches delivered in the Chamber of Deputies by the Minister of Interior by François Arago by Gay Lussac, the procedure as described by Daguerre, also contains the description of Heliography...
Musée Nicéphore Niépce and the invention of photography
A visit to the museum and some thoughts about the invention of photography and its relation with changes in Modernity's concept of Nature
Art and Illusion | Ernst Hans Gombrich
This is a fundamental book. It studies the question of verisimilitude between image and object and the means by which it is constructed. It studies the weight of conventions and the role of learning and mental operations that contribute too much to our assessment of the visual stimuli we receive...
Daguerréotypie | J. Thierry
Book of 1847 combines a short history of the invention of photography with detailed instructions on how to proceed in obtaining the daguerreotype. Can be downloaded from this link.
The Evolution of Photography | John Werge
The book focuses on chemical side of photography, there is not talk about lenses or cameras. The author, himself a photographer and colourist, was a teenager when daguerrotypes were spreading into UK and he mixes historical events with his personal experiences in a very nice manner. There is a...
Tom Wedgwood | Richard Buckley Litchfield
Biography of Thomas Wedgwood with a chapter about his works to photography and also an appendices named “A Mythical Account of T. Wedgwood Photographic Work” in which the author dismisses theories about an early discovery of photography made by Wedgwood. It contains the report wrote by...