Reduction print
Encyclopedia
A reduction print is a print of a large-size format film converted to a smaller size format (for example, a 70mm print converted to 35mm). Often this is necessary because not all theaters have a screen of the size required to show a film in large format, or indeed the projection equipment. This is especially true of some screens in multiplex
Multiplex (movie theater)
A multiplex is a movie theater complex with multiple screens, typically three or more. They are usually housed in a specially designed building. Sometimes, an existing venue undergoes a renovation where the existing auditoriums are split into smaller ones, or more auditoriums are added in an...

 theaters. In former days, it was true of the neighborhood theatre
Neighborhood theatre
In the days before multiplexes, neighborhood theatre was the colloquial name given to smaller movie theatres located in local neighborhoods, as opposed to the large movie palaces located in downtown areas. Neighborhood theatres would typically show films at cheaper prices, and were often very...

s located outside of downtown
Downtown
Downtown is a term primarily used in North America by English speakers to refer to a city's core or central business district ....

 areas.

Conversely, a "blow-up print" is a regular format film converted to larger size (i.e., 35mm to 70mm). This was once often done so that "regular-sized" film would seem even more impressive on screens such as the ones in Cinerama
Cinerama
Cinerama is the trademarked name for a widescreen process which works by simultaneously projecting images from three synchronized 35 mm projectors onto a huge, deeply-curved screen, subtending 146° of arc. It is also the trademarked name for the corporation which was formed to market it...

 theaters.

In relief print
Relief print
A relief print is an image created by a printmaking process where protruding surface faces of the matrix are inked; recessed areas are ink free. Printing the image is therefore a relatively simple matter of inking the face of the matrix and bringing it in firm contact with the paper...

ing, a reduction print is a multicolor print in which the separate colors printed from the same block at different stages. Usually, the lightest color of the design is printed first, then the block is "reduced" by carving to the areas which the artist wants to print the second color from, and so forth. The disadvantage of reduction printing as opposed to printing from multiple blocks is that once the first color is printed, the matrix for it is destroyed in the creation of the printing matrix for the second color. It is impossible to undo mistakes.
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