Daguerreotype *Is an early method of photography created by Louis-Jaques-Mandé Daguerre (1839) *The process of making a daguerreotype starts with a silver-plated copper plate. The plate is first buffed and polished until it resembles a mirror. The plate is then sensitized to light over iodine and bromine in specialized, light-proof boxes. *Is a negative and positive image at the same time *The images last a long time- 200 years+ and remain in pristiene condition *Allows for infinite detail Cyanotype
*Is the photographic printing process that produces a cyan-blue print or image. (Created by Sir John Herschel- 1842) *Made from two types of salt: potassium ferricyanide and ferric ammonium citrate In a darkened room (no UV light) mix equal parts of solution A and B. The solution is now light sensitive and should be used immediately and stored in complete darkness. In the same darkened room, coat a piece of watercolor paper (90 pound works well) using a small paint brush and dry the paper using a hair dryer. The paper may be stored in a light-tight box for later use. Using the contact printing method expose the paper to full sun for 15-20 minutes. The yellow emulsion should turn to a steel blue grey color. Exposure times vary greatly depending upon the strength of the UV source and the density of the negative. Artificial light source rich in UV may be used with testing. Develop/ rise in water until stain clears. A few drops of 3% Hydrogen Peroxide may be added to the water solution to enhance the blue color Air dry to complete the cyanotype. *Non silver process is unique to the time period, most other photography processes are silver based. *Commonly known as the "blue print".
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