The Friedman Archives Guide to Sony’s A7RV by Gary L. Friedman. I’ve owned the, rather complex, Sony A7RV for over a year and have used it extensively.  It wasn’t until I purchased Gary’s online edition of this book that I came into a nearly full understanding of all its features and how to use them.  Although I have studied the Sony Help Guide, and free e-books about the camera, nothing gave me the clarity that this book has.  Gary presents his information in a very organized manner and explains the features in a down to earth way.  As a result some of the things that I just couldn’t quite get…