Explore the intricate world of telescope optics with 'Telescope Eyepieces: Optical Theory and Design' by Sean G. Ryan. This comprehensive guide delves into the fundamental principles and advanced techniques behind designing and understanding telescope eyepieces. Perfect for amateur astronomers, optical engineers, and students of physics, this book offers a deep dive into the science that makes powerful observation possible. Key Features: * In-depth coverage of optical theory relevant to eyepiece design. * Practical insights into the design process and challenges. * Detailed explanations of different eyepiece types and their functionalities. * Suitable for both theoretical study and practical application. This paperback edition provides accessible knowledge on a complex subject, making it an invaluable resource for anyone looking to enhance their understanding of telescope performance. Whether you're seeking to improve your existing equipment or learn the principles of optical engineering, this book equips you with the necessary knowledge. Enhance your astronomical observations by mastering the science of eyepieces. Product Summary: Telescope eyepieces, optical theory, optical design, Sean G. Ryan, book, paperback, astronomy, physics, optical engineering.