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Groups > comp.lang.basic.visual.misc > #3527
| Newsgroups | comp.lang.basic.visual.misc |
|---|---|
| Date | 2023-12-31 06:26 -0800 |
| Message-ID | <3e461f9a-71af-4a96-93d2-4512de465a22n@googlegroups.com> (permalink) |
| Subject | History Pictures |
| From | Kristina Caulley <kristinacaulley231@gmail.com> |
The history of photography began with the discovery of two critical principles: camera obscura image projection and the observation that some substances are visibly altered by exposure to light. There are no artifacts or descriptions that indicate any attempt to capture images with light sensitive materials prior to the 18th century. history pictures DOWNLOAD https://castna-yagso.blogspot.com/?gtyw=2wZSE9 In 1826, Nicéphore Niépce first managed to fix an image that was captured with a camera, but at least eight hours or even several days of exposure in the camera were required and the earliest results were very crude. Niépce's associate Louis Daguerre went on to develop the daguerreotype process, the first publicly announced and commercially viable photographic process. The daguerreotype required only minutes of exposure in the camera, and produced clear, finely detailed results. The details were introduced to the world in 1839, a date generally accepted as the birth year of practical photography.[2][3]The metal-based daguerreotype process soon had some competition from the paper-based calotype negative and salt print processes invented by William Henry Fox Talbot and demonstrated in 1839 soon after news about the daguerreotype reached Talbot. Subsequent innovations made photography easier and more versatile. New materials reduced the required camera exposure time from minutes to seconds, and eventually to a small fraction of a second; new photographic media were more economical, sensitive or convenient. Since the 1850s, the collodion process with its glass-based photographic plates combined the high quality known from the Daguerreotype with the multiple print options known from the calotype and was commonly used for decades. Roll films popularized casual use by amateurs. In the mid-20th century, developments made it possible for amateurs to take pictures in natural color as well as in black-and-white. The commercial introduction of computer-based electronic digital cameras in the 1990s soon revolutionized photography. During the first decade of the 21st century, traditional film-based photochemical methods were increasingly marginalized as the practical advantages of the new technology became widely appreciated and the image quality of moderately priced digital cameras was continually improved. Especially since cameras became a standard feature on smartphones, taking pictures (and instantly publishing them online) has become a ubiquitous everyday practice around the world. The early science fiction novel Giphantie[16] (1760) by the Frenchman Tiphaigne de la Roche described something quite similar to (color) photography, a process that fixes fleeting images formed by rays of light: "They coat a piece of canvas with this material, and place it in front of the object to capture. The first effect of this cloth is similar to that of a mirror, but by means of its viscous nature the prepared canvas, as is not the case with the mirror, retains a facsimile of the image. The mirror represents images faithfully, but retains none; our canvas reflects them no less faithfully, but retains them all. This impression of the image is instantaneous. The canvas is then removed and deposited in a dark place. An hour later the impression is dry, and you have a picture the more precious in that no art can imitate its truthfulness."[17] De la Roche thus imagined a process that made use of a special substance in combination with the qualities of a mirror, rather than the camera obscura. The dark place in which the pictures dried suggests that he thought about the light sensitivity of the material, but he attributed the effect to its viscous nature. Elizabeth Fulhame's book An essay on combustion[20] described her experiments of the effects of light on silver salts. She is better known for her discovery of what is now called catalysis, but Larry J. Schaaf in his history of photography[21][22] considered her work on silver chemistry to represent a major step in the development of photography. English photographer and inventor Thomas Wedgwood is believed to have been the first person to have thought of creating permanent pictures by capturing camera images on material coated with a light-sensitive chemical. He originally wanted to capture the images of a camera obscura, but found they were too faint to have an effect upon the silver nitrate solution that was recommended to him as a light-sensitive substance. Wedgwood did manage to copy painted glass plates and captured shadows on white leather, as well as on paper moistened with a silver nitrate solution. Attempts to preserve the results with their "distinct tints of brown or black, sensibly differing in intensity" failed. It is unclear when Wedgwood's experiments took place. He may have started before 1790; James Watt wrote a letter to Thomas Wedgwood's father Josiah Wedgwood to thank him "for your instructions as to the Silver Pictures, about which, when at home, I will make some experiments". This letter (now lost) is believed to have been written in 1790, 1791 or 1799. In 1802, an account by Humphry Davy detailing Wedgwood's experiments was published in an early journal of the Royal Institution with the title An Account of a Method of Copying Paintings upon Glass, and of Making Profiles, by the Agency of Light upon Nitrate of Silver. Davy added that the method could be used for objects that are partly opaque and partly transparent to create accurate representations of, for instance, "the woody fibres of leaves and the wings of insects". He also found that solar microscope images of small objects were easily captured on prepared paper. Davy, apparently unaware or forgetful of Scheele's discovery, concluded that substances should be found to eliminate (or deactivate) the unexposed particles in silver nitrate or silver chloride "to render the process as useful as it is elegant".[19] Wedgwood may have prematurely abandoned his experiments because of his frail and failing health. He died at age 34 in 1805. Roger Fenton and Philip Henry Delamotte helped popularize the new way of recording events, the first by his Crimean War pictures, the second by his record of the disassembly and reconstruction of The Crystal Palace in London. Other mid-nineteenth-century photographers established the medium as a more precise means than engraving or lithography of making a record of landscapes and architecture: for example, Robert Macpherson's broad range of photographs of Rome, the interior of the Vatican, and the surrounding countryside became a sophisticated tourist's visual record of his own travels. The web has been a popular medium for storing and sharing photos ever since the first photograph was published on the web by Tim Berners-Lee in 1992 (an image of the CERN house band Les Horribles Cernettes). Since then sites and apps such as Facebook, Flickr, Instagram, Picasa (discontinued in 2016), Imgur, Photobucket and Snapchat have been used by many millions of people to share their pictures. Getting the perfect shot in wartime is not only about weapons. With over 30 countries involved in World War II and the loss of over 50 million lives, war photography captured the destruction and victories of the deadliest war in history. This Pulitzer Prize-winning photo has become synonymous with American victory. Taken during the Battle of Iwo Jima by Associated Press photographer Joe Rosenthal, it is one of the most reproduced, and copied, photographs in history. Your selection contains 1 or more assets which are not immediately available due to the quality of the digital file or the copyright status. Please contact rightsrepro chicagohistory.org for use and reference the image ID. The tightly-composed, highly-concentrated composition is a powerful and empathic portrayal of the human tragedy brought about by the economic collapse. It has become one of the most reproduced images in the history of photography, its emotional impact arising from a universal understanding of the parent and child relationship, and the commonality of experience between human beings. The war in Afghanistan has left an unfamiliar landscape in its wake, with many residents living among ruined buildings. Norfolk produces beautiful and detailed images, often bathed in rich sunlight and sometimes including distant mountain ranges, which emphasise the scale and history of the land. Hi all...Maybe it's me (I hope it is) but eBay doesn't seem to be doing their customers many favors in our attempts to record keep our purchases and sales. When I look at my purchase history from 2023 and try to click the detail on an item...particularly a lot with multiple items included...to remind myself what was included in that lot...I often get the "We looked everywhere" error message. This is happening on items purchased as recently as June of 2023. This can't be how ebay is supposed to work, is it? Is it a glitch? As I scroll through my purchase history from this year, I see many purchases that don't even have a thumbnail picture any more. Just a generic gray box. Is this happening to anyone else? I have been noticing these greyed out pictures in many areas of eBay lately. There is no explaining of eBay's constant glitches and changes. They are always "upgrading" and "streamlining" the site while making it more unfriendly and more difficult to use. As a new seller and a relatively casual one at that...There's no easier way to document what I buy and sell than with pictures. The amount of documentation that would be required without that would basically end me selling on ebay. Not worth the time it would take to document dozens if not hundreds of items with every purchase. In a series of short, engaging essays, Kim Beil uncovers the origins of fifty photographic trends and investigates their original appeal, their decline, and sometimes their reuse by later generations of photographers. Drawing on a wealth of visual material, from vintage how-to manuals to magazine articles for working photographers, this full-color book illustrates the evolution of trends with hundreds of pictures made by amateurs, artists, and commercial photographers alike. Whether for selfies or sepia tones, the rules for good pictures are always shifting, reflecting new ways of thinking about ourselves and our place in the visual world. 35fe9a5643
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History Pictures Kristina Caulley <kristinacaulley231@gmail.com> - 2023-12-31 06:26 -0800
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