On the subject of POP paper, we can make any contemporary silver gelatin paper function as a POP paper simply by treating it with either silver nitrate (4% solution) or sodium nitrite (10% solution) under safelight. A cotton ball can be used to apply the solution on the emulsion side of the paper. Once the paper is dry, it is ready to print-out and like POP papers of yore, it requires a negative with higher contrast and density range.
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