Although Times New Roman and Times are very similar, various differences developed between the versions marketed by Linotype and Monotype when the master fonts were transferred from metal to photo and digital media. For example, Linotype has slanted serifs on the capital S, while Monotype's are vertical, and Linotype has an extra serif on the number 5.[13] Most of these differences are invisible in body text at normal reading distances, or 10pts at 300 dpi. (Vivid differences between the two versions do occur in the lowercase z in the italic weight and in the percent sign in all weights.) Subtle competition grew between the two foundries, as the proportions and details as well as the width metrics for their version of Times grew apart.