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What are the use of salicylic acid camphor and castor oil in the preparation of collodion?
they act as plasticizers, resulting in a flexible collodion after the more volatile solvents evaporate
Early camera plates were covered with what material?
Collodion
What did Frederick Scott Archer invent?
he invented the collodion process of phototgraphy
What are the example of collodion?
Collodion is commonly used in wound dressings and in the production of photographic film. It is also used in creating special effects makeup and to seal and protect artwork. Additionally, it can be used in histology to prepare tissue samples for microscopic examination.
What is collodion usp?
Collodion USP is a highly viscous solution made from nitrocellulose dissolved in a mixture of ether and alcohol. It is used in medicine as a topical dressing for wounds and as a protective coating due to its film-forming properties. In addition to its medical applications, collodion is also utilized in photography and as a solvent in various chemical processes. The "USP" designation indicates that it meets the standards set by the United States Pharmacopeia for quality and purity.
What has the author Henry Oscar Klein written?
Henry Oscar Klein has written: 'The applications of collodion emulsion to three-colour photography, process work, isochromatic photography and spectrographic work' 'The three-colour process - a step child' 'Photography of magnetic fields' 'A glimpse at some Continental schools and studios' 'The present position of collodion emulsion' 'Collodion emulsion and its applications to various photographic and photo-mechanical purposes, with special reference to trichromatic process work' 'About trichromatic portraiture'
What is a collodion wet plate?
The Wet Collodion process was invented in 1851 by an Englishman named Frederick Scott Archer. It was an answer to Talbot's paper negative, the Calotype (1839), and the Daguerreotype (1839) from Louis Daguerre (a silver coated copper plate fumed with iodine and bromine and developed over hot mercury). The paper negative printed on Salt paper was "soft" but reproducible and the Daguerreotype was sharp and highly detailed, but it was a "one-off" and not reproducible. The Wet Collodion process produced a sharp, highly detailed negative and it was also reproducible - printed on Albumen and Salt paper. The steps of making a Wet Collodion image: 1. Cut a piece of glass and de-burr or de-sharpen the edges 2. Clean the glass very well. 3. Flow Collodion onto the plate (this Collodion contains two salts; an iodide and bromide. It also has additional alcohol and ether. 4. Sensitize the plate in silver nitrate for 3 - 5 minutes. 5. Expose the plate in the camera. 6. Develop the plate with an iron base developer - this developer contains distilled water, alcohol, acetic acid and iron. 7. Fix the image in KCN or Sodium Thiosulfate. 8. Varnish the image with Gum Sandarac, alcohol and lavender oil. 9. Let the varnish cure and et voile! A Wet Plate Collodion image. Post Script: The Wet Collodion process can produce both Negatives and Direct Positives. The process is basically the same.
What is a wet plate?
The Wet Collodion process was invented in 1851 by an Englishman named Frederick Scott Archer. It was an answer to Talbot's paper negative, the Calotype (1839), and the Daguerreotype (1839) from Louis Daguerre (a silver coated copper plate fumed with iodine and bromine and developed over hot Mercury). The paper negative printed on Salt paper was "soft" but reproducible and the Daguerreotype was sharp and highly detailed, but it was a "one-off" and not reproducible. The Wet Collodion process produced a sharp, highly detailed negative and it was also reproducible - printed on Albumen and Salt paper. The steps of making a Wet Collodion image: 1. Cut a piece of glass and de-burr or de-sharpen the edges 2. Clean the glass very well. 3. Flow Collodion onto the plate (this Collodion contains two salts; an iodide and bromide. It also has additional alcohol and ether. 4. Sensitize the plate in silver nitrate for 3 - 5 minutes. 5. Expose the plate in the camera. 6. Develop the plate with an iron base developer - this developer contains distilled water, alcohol, acetic acid and iron. 7. Fix the image in KCN or Sodium Thiosulfate. 8. Varnish the image with Gum Sandarac, alcohol and lavender oil. 9. Let the varnish cure and et voile! A Wet Plate Collodion image. Post Script: The Wet Collodion process can produce both Negatives and Direct Positives. The process is basically the same.
What is the exposure time for wet glass collodion?
The exposure time for wet glass collodion photography can vary depending on factors such as lighting conditions, sensitivity of the emulsion, and the specific equipment being used. Typically, exposure times can range from a few seconds to several minutes. It is recommended to experiment with different exposure times to achieve the desired results.
What has the author Robert A Sobieszek written?
Robert A. Sobieszek has written: 'The Prehistory of Photography' 'The spirit of fact' -- subject(s): Exhibitions, Daguerreotype 'Skrebneski: The First Fifty Years Photographs' 'Acquisitions 1973-1980' 'The collodion process and the ferrotype: three accounts, 1854-1872' -- subject(s): Collodion process, Photography, Tintype 'Ghost in the Shell' 'Robert Fichter'
When was lamination invented?
It was invented in 1903 by a french chemist when he dropped a glass beaker coated in viscous collodion and it shattered, but didn't come apart because of the coating.
What has the author Arthur Payne written?
Arthur Payne has written: 'Practical orthochromatic photography' -- subject(s): Orthochromatic Photography, Photography, Orthochromatic 'A colour-sensitive collodion process'
