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A crinoline / ˈ k r ɪ n. əl. ɪ n / is a stiff or structured petticoat designed to hold out a skirt, popular at various times since the mid-19th century. Originally, crinoline described a stiff fabric made of horsehair ("crin") and cotton or linen which was used to make underskirts and as a dress lining. The term crin or crinoline continues ...
Also may mean "Perspective Control" for a lens that has the ability to shift to tilt to control linear perspective in an image. May also stand for personal computer in conjunction with digital photography. PDAF: Phase-detection autofocus. One of the mechanisms of automatic lens focusing. PF: Purple fringing. A form of chromatic aberration in ...
The so-called golden age of hand-coloured photography in the western hemisphere occurred between 1900 and 1940. [11] The increased demand for hand-coloured landscape photography at the beginning of the 20th century is attributed to the work of Wallace Nutting. Nutting, a New England minister, pursued hand-coloured landscape photography as a ...
The word "photography" was created from the Greek roots φωτός (phōtós), genitive of φῶς (phōs), "light" [2] and γραφή (graphé) "representation by means of lines" or "drawing", [3] together meaning "drawing with light". [4] Several people may have coined the same new term from these roots independently.
In colour and chromogenic black-and-white photography, a similar development process is used except that the reduction of silver simultaneously oxidizes the paraphenylene colour developing agent which then takes part in the production of dye-stuffs in the emulsion by reacting with the appropriate couplers. There are three distinct processes ...
Shown here is a medieval sundial that was found built into the upstanding house. Sundials are regularly found in churches dating to the late Anglo-Saxon and early Norman periods.
Hints and the solution for today's Wordle on Wednesday, January 29.
The first permanent photograph, a contact-exposed copy of an engraving, was made in 1822 using the bitumen-based "heliography" process developed by Nicéphore Niépce.The first photographs of a real-world scene, made using a camera obscura, followed a few years later at Le Gras, France, in 1826, but Niépce's process was not sensitive enough to be practical for that application: a camera ...