I learned quite a lot from this book. This is because of, rather than despite, its age. The discussion of gear is wide-ranging, from 35mm film up to large-format view cameras. Despite the fact that I have never used a view camera, the discussion of tilt-shift movements helped me understand the use of smaller-format cameras work. Adams includes multiple experiments, including showing the effect of lenses with different focal lengths in a way that makes full frame vs APS-C crop factor issues make a lot of sense.