Notes on Making Duplicate Negatives

THE fundamental principles underlying the preparation of first quality duplicate negatives were established by Capstaff and Seymour¹ in a paper published less than two years ago, and shortly afterwards practical instructions on the use of duplicating film were issued.² Since the appearance of these publications, however, further experience has been gained relative to the use of duplicating film, and the present paper contains practical notes summarizing the results of this experience.

Print ISSN

0096-6460

Published

1928-04

Content type

Original Research

DOI

10.5594/J10231