E- text books

Aberration Theory Made Simple, 2nd Ed

Author : Mahajan, Virendra N. 

Optical Communication Receiver Design

Author : Alexander, Stephen B. 

Field Guide to Binoculars and Scopes

Author : Yoder, Jr., Paul R. 

RGB Interferometry for Optical Metrology

Author : Upputuri, Paul Kumar 

Field Guide to Photographic Science

Author : Rowlands, D. Andrew 

Fundamentals of Antennas: Concepts and Applications

Author : Christodoulou, Christos G.