Answer:
"Matrices for printing types were made of copper. However, in printmaking the matrix is whatever is used, with ink, to hold the image that makes up the print, whether a plate in etching and engraving or a woodblock in woodcut."
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The answer is an insulator.
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Digital Camera; it allows the cinematographer to see the results instantly, there is no risk of imperfections, Image quality is phenomenally better, digital film is easier to manage and store than analog film.
