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What is an early photographic process using silver plate developed in mercury vapour?
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∙ 15y ago
Daguerreotype
Wiki User
∙ 15y ago
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A daguerreotype was an early photographic method created using a?
copper plate coated with silver iodide
What atomic number is 47 used to make photographic film?
The element with atomic number 47 is Silver (Ag). It is used in photographic film, as well as solar panels, water filtration, X-rays, and disinfectants.
What is use of hypo in photography?
It removes undeveloped silver halides from photographic emulsions. This leaves the silver behind, giving you a prnt that won't eventually turn black (because silver halides will eventually turn black on their own) or a negative light will pass through.
What was the first commercial photography process?
The first commercial photography process was the daguerreotype, developed by French artist and physicist Louis Daguerre in 1839. The process involved exposing a silver-plated copper sheet to iodine vapor, creating a light-sensitive surface. This was then exposed to light in a camera obscura and further treated with mercury vapor to fix the image permanently. The daguerreotype was the first commercially successful photography process and was widely used for portraiture in the mid-19th century. The daguerreotype was an important milestone in the history of photography, as it marked the first use of a chemical process to capture a permanent image. The process was relatively easy to use, and the results were very sharp and detailed. However, the daguerreotype was a one-of-a-kind image and could not be duplicated, which limited its commercial potential. In 1851, the collodion wet plate process was developed by Englishman Frederick Scott Archer. This process used a glass plate coated in collodion and sensitized with silver nitrate. The plate was exposed in a camera obscura and developed with a variety of chemicals. This process was much faster and cheaper than the daguerreotype, and it allowed for multiple copies of the same image to be made. This process quickly became the most popular form of photography, and remained the dominant form until the 1880s.
How does traditional photographic paper work?
The light sensitivity of photographic paper--that is, its ability to pick up an image from an image projected onto it from a negative and retain it--seems baffling unless you understand what is happening to the paper on a chemical level. The presence of certain chemicals on photographic paper affect how an image appears, how fast it takes the image to appear on the paper, and even whether the paper will accept a color or black and white image.Chemical CoatingIt is the layer of chemicals coating photographic paper that provides light sensitive properties. Silver halides--or the compound that is created when silver is combined with one of two types of silver fluorides, chloride, silver bromide or iodide--are suspended in gelatin. Depending on the particular mixture used to create the silver halide for a paper emulsion, according to R. E. Jacobsen (et al), author of "The Manual of Photography, the "speed, rates of development and fixation, image colour and tone reproduction qualities" are affected.Light SensitivityThe presence of trace elements, like sulfur for instance, within the gelatin used in the emulsion can affect the light sensitivity, and often increases it. Silver halide crystals present within the emulsion have light-sensitive properties; when they are exposed to light, the surface changes, or develops, and is ready for processing. The crystal actually becomes what is referred to as "developable," or ready for fixing (the actual development process) in a chemical bath that stops the development of the crystals. Were they to develop fully, the image surface would turn completely black. Portions of the chemical coating (emulsion) receiving the most light develop silver halide crystals more densely. Much like film has a speed (ISO 400, for example), photographic paper does also. The paper speed refers to the rate at which the silver halide crystals develop--how light sensitive they are.Monochrome and ColorWhether a paper is intended for monochrome (black and white) images or for color, largely depends on the levels of halide present in the paper's emulsion. The more bromide is present in the paper, the greater the sensitivity of the crystals to longer wavelengths, or those that can pick up color. There are photographic papers made especially for picking up the right black and white tones from color negatives. Photographic paper made for developing prints from black and white images will not process the tones from a color negative correctly, or directly translate the tonality into a grayscale image. Rather, the image will appear murky and out of focus.See the Related Link for more information.
What is daguerreotypes?
A daguerreotype is a photograph made by an early photographic process. The photo was produced on a silver plate sensitized to iodine and developed in mercury vapor.
What is the process for the extraction of silver nitrate from photographic waste?
please i need the process of extracting silver nitrate from photographic waste
How can you use the word Daguerreotype in a sentence?
daguerreotype is one of the earliest photographic processes, in which the image was produced on iodine-sensitized silver and developed in mercury vapour
What is used to make photographic film?
Photographic film was invented in 1889 by George Eastman. Photographic film and paper is made using silver nitrate which is light sensitive.
what is the chemical used for making photographic plate?
For photographic plates silver halides are used.
What is another word for daguerreotype?
I'm not sure daguerreotype has an exact synonym. It's a photographic process with images made on a light-sensitive silver-coated metallic plate. I suppose you could use 'photographic process' as a synonym, but I can't think of any good synonyms for such a thing.
My atomic number is 47 and you are used to make photographic film?
The element with the atomic number 47 is silver (Ag), and it is used to make photographic film and paper. But the atomic number determined the answer, not its use.
How does Photographic plate work?
The plate is covered in a light sensitive compound, containing Silver Halide crystals. When light falls on the Silver-halide, it causes the silver atoms to clump together. When developed with chemicals, the silver is left behind, causing dark areas where light has fallen. This makes a negative image, where light is dark and dark is light. To get a positive print, simply shine light through the developed plate onto paper covered in the same Silver-halide compound. After the same chemical process, the picture is reversed again giving the positive image.
What is the word equation of photographic film?
has something to do with silver ..?
The salts of which metal are used in photographic emulsions?
Silver salts (AgCl)
Is Mercury Blue or Silver?
mercury is a grey silver colour.
Which is denser silver or mercury?
Mercury is more dense than silver.
