 The calotype process produced a translucent original negative image from which multiple positives could be made by simple contact printing.This gave it an important advantage over the daguerreotype process, which produced an opaque original positive that could be duplicated only by copying it with a camera.Although calotype paper could be used to make positive prints from calotype negatives, Talbot's earlier silver chloride paper, commonly called "salted paper", was normally used for that purpose.