Calhoun, Catherine, ed. (1988). Photo '89 Buying Guide. ABC Consumer Magazines, Inc. Retrieved 30 August 2024.
books.google.com
Ortner, Everett H. (April 1981). "Through The Viewfinder: All-Range Zoom". Popular Science. pp. 26–28. If you're not prepared to wait, the Kiron 28–85 will set you back (list price) $449.