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Offset Lithography
Stone Lithography: drawing with a litho crayon
Offset Lithography
Stone Lithography: rolling on the ink
More about inking a plate: http://entertainment.howstuffworks.com/stone-lithography5.htm
Offset Lithography
Stone Lithography: multiple colors on separate plates
violet brown
Each plate is drawn and aligned by hand.
Offset Lithography
Stone Lithography: multiple colors on separate plates
grey tint orange
Offset Lithography
Stone Lithography: multiple colors on separate plates
deep grey mid grey
Offset Lithography
Stone Lithography: multiple colors on separate plates
brown The Finished Print
Offset Lithography
Stone Lithography: a small contemporary press
Offset Lithography
Stone Lithography: a larger press
Offset Lithography
Offset Lithography: printer’s marks
D. Trim marksE. Color barF. Tint bar
A. Star targetB. Registration markC. Page information
Offset Lithography
Offset Lithography: color separations
Composite image printed on a color laser printer compared to four-color separations printed on an imagesetter.
Offset Lithography
Offset Lithography: raster image processing (RIP) software
Raster Image Processing: the process and the means of turning vector digital information such as a PostScript file into a high-resolution raster image, and preparing color separations for plates.
Offset Lithography
Offset Lithography: platesetter
A platesetter (or imagesetter) is a machine which receives a raster image from a raster image processor and in turn, creates a lithographic plate suitable for use on an offset press.
Offset Lithography
Offset Lithography: polyester lithographic plate
Offset Lithography
Offset Lithography: cylinders
Offset Lithography
Offset Lithography: cylinders
Offset Lithography
Offset Lithography: 2-color press
Offset Lithography
Offset Lithography: 4-color press
Offset Lithography
Offset Lithography: web press
Offset Lithography
Offset Lithography: photo of the offset rollers
Offset Lithography
Offset Lithography: halftone
greyscale in halftone, AKA screens
Offset Lithography
Offset Lithography: halftone
angles
Offset Lithography
Offset Lithography: halftone
printed photograph in glossy magazine
Offset Lithography
Offset Lithography: halftone
zoom in
Offset Lithography
Offset Lithography: halftone
zoom in to see rosettes
Offset Lithography
Offset Lithography: spot colors
Offset Lithography
Offset Lithography: spot colors
Offset Lithography
Offset Lithography: 6-color press
