Difference between revisions of "Cyanotype"
Jump to navigation
Jump to search
m (Text replace - "== Authority ==" to "== Sources Checked for Data in Record ==") |
|||
| Line 1: | Line 1: | ||
| − | [[File:1983.186-SC26163.jpg|thumb| | + | [[File:1983.186-SC26163.jpg|thumb|Cyanotype<br>MFA# 1983.186]] |
== Description == | == Description == | ||
| − | + | [[File:1986.593-SC25765.jpg|thumb|Cyanotype<br>MFA# 1986.593]] | |
A blue printed image prepared by a nonsilver process that was popular for photographs at the end of the 19th century. More recently, cyanotypes, or blueprints, were primarily used to copy architectural drawings. The cyanotype method was suggested in 1842 by British astronomer Sir John Herschel but not widely used until the 1880s after Henri Pellet developed a direct positive blueprint process (1877). In this process, cyanotype paper is coated with a ferric and an organic acid in a binder ([[dextrin|dextrin]], [[gum|gum]], or [[gelatin|gelatin]]); after exposure to light the image is developed with potassium ferricyanide which reacts to form [[Prussian%20blue|Prussian blue]]. The blue image on white paper is fixed by washing the remaining salts away in an aqueous solution. | A blue printed image prepared by a nonsilver process that was popular for photographs at the end of the 19th century. More recently, cyanotypes, or blueprints, were primarily used to copy architectural drawings. The cyanotype method was suggested in 1842 by British astronomer Sir John Herschel but not widely used until the 1880s after Henri Pellet developed a direct positive blueprint process (1877). In this process, cyanotype paper is coated with a ferric and an organic acid in a binder ([[dextrin|dextrin]], [[gum|gum]], or [[gelatin|gelatin]]); after exposure to light the image is developed with potassium ferricyanide which reacts to form [[Prussian%20blue|Prussian blue]]. The blue image on white paper is fixed by washing the remaining salts away in an aqueous solution. | ||
| − | [[ | + | [[[SliderGallery rightalign|cyanotype sample12 site2.jpg~SEM]]] |
| − | |||
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
blueprint; blue print; Prussian-blue process; Pellet process; pelletones | blueprint; blue print; Prussian-blue process; Pellet process; pelletones | ||
| − | == | + | == Risks == |
| − | Highly sensitive to alkalis. Should not contact buffered paper. | + | * Highly sensitive to alkalis. |
| − | + | * Should not contact buffered paper. | |
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
== Additional Images == | == Additional Images == | ||
| − | |||
<gallery> | <gallery> | ||
| − | File:Man.Woman_Cyanotype_overall.jpg|Cyanotype | + | File:Man.Woman_Cyanotype_overall.jpg|Cyanotype overall |
| − | File:Man.Woman_Cyanotype_det.jpg|Cyanotype | + | File:Man.Woman_Cyanotype_det.jpg|Cyanotype detail |
File:Man_woman_18_cyan.jpg|Cyanotype | File:Man_woman_18_cyan.jpg|Cyanotype | ||
| − | File:Group.PC_Cyanotype_overall.jpg|Cyanotype | + | File:Group.PC_Cyanotype_overall.jpg|Cyanotype overall |
| − | File:Group.PC_Cyanotype_det.jpg|Cyanotype | + | File:Group.PC_Cyanotype_det.jpg|Cyanotype detail |
File:group_cyanotype2_18.jpg|Cyanotype | File:group_cyanotype2_18.jpg|Cyanotype | ||
| − | File:Cyanotype_Sample 12 200x Refl.jpg|Cyanotype sample | + | File:Cyanotype_Sample 12 200x Refl.jpg|Cyanotype sample at 200x, reflected light |
| − | File:Cyanotype_Sample 12 200x UV.jpg|Cyanotype sample | + | File:Cyanotype_Sample 12 200x UV.jpg|Cyanotype sample at 200x, UV light |
File:cyanotype sample12 site2 spectra view.jpg|Spectrum sample sites | File:cyanotype sample12 site2 spectra view.jpg|Spectrum sample sites | ||
File:cyanotype sample12 site2 spectrum 1-4.jpg|Spectra | File:cyanotype sample12 site2 spectrum 1-4.jpg|Spectra | ||
</gallery> | </gallery> | ||
| + | ==Resources and Citations== | ||
| − | + | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "Blueprint." Accessed 29 Apr. 2004 . | |
| − | |||
| − | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "Blueprint." | ||
| − | * | + | * Alternative Photography: [http://www.alternativephotography.com/wp/history/cyanotype-history-john-herschels-invention Cyanotype History] |
* ''The Dictionary of Art'', Grove's Dictionaries Inc., New York, 1996 Comment: "Photography" | * ''The Dictionary of Art'', Grove's Dictionaries Inc., New York, 1996 Comment: "Photography" | ||
| Line 48: | Line 40: | ||
* ''Caring for your Collections'', Arthur W Schulz (ed.), Harry N. Abrams, Inc. , New York, 1992 | * ''Caring for your Collections'', Arthur W Schulz (ed.), Harry N. Abrams, Inc. , New York, 1992 | ||
| − | * | + | * AMOL reCollections Glossary - http://amol.org.au/recollections/7/c/htm |
* Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997 | * Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997 | ||
Revision as of 12:43, 14 July 2022
Description
A blue printed image prepared by a nonsilver process that was popular for photographs at the end of the 19th century. More recently, cyanotypes, or blueprints, were primarily used to copy architectural drawings. The cyanotype method was suggested in 1842 by British astronomer Sir John Herschel but not widely used until the 1880s after Henri Pellet developed a direct positive blueprint process (1877). In this process, cyanotype paper is coated with a ferric and an organic acid in a binder (Dextrin, Gum, or Gelatin); after exposure to light the image is developed with potassium ferricyanide which reacts to form Prussian blue. The blue image on white paper is fixed by washing the remaining salts away in an aqueous solution.
Synonyms and Related Terms
blueprint; blue print; Prussian-blue process; Pellet process; pelletones
Risks
- Highly sensitive to alkalis.
- Should not contact buffered paper.
Additional Images
Cyanotype overall
Cyanotype detail
Cyanotype
Cyanotype overall
Cyanotype detail
Cyanotype
Cyanotype sample at 200x, reflected light
Cyanotype sample at 200x, UV light
Spectrum sample sites
Spectra
Resources and Citations
- Encyclopedia Britannica, http://www.britannica.com Comment: "Blueprint." Accessed 29 Apr. 2004 .
- Alternative Photography: Cyanotype History
- The Dictionary of Art, Grove's Dictionaries Inc., New York, 1996 Comment: "Photography"
- Luis Nadeau, Encyclopedia of Printing, Photographic, and Photomechanical Processes, Atelier, New Brunswick, 1997
- Caring for your Collections, Arthur W Schulz (ed.), Harry N. Abrams, Inc. , New York, 1992
- AMOL reCollections Glossary - http://amol.org.au/recollections/7/c/htm
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998