This is an introductory book that uses illustrations to explain the basics of lenses (optical fundamentals), their mechanisms, and performance (such as aberrations). - Title: Illustrated Introduction: Understanding the Basics and Mechanisms of the Latest Lenses - Author: Kan Mukuwa - Publisher: Shuwa System - Published: August 2010 - ISBN: 978-4-7980-1028-1 - Price: 1,400 yen + tax ※ There are markings from highlighter pens and ballpoint pens in several places. ※ There are white stickers on the spine (lower left) and the colophon (lower left) (please check the photos).