The Practical Zone System, 4th Edition

 

 

APPENDIX F The Practical Zone System Film/Developer Testing Method

 

Many years ago as I was learning the Zone System I went through the frustrating process of designing home film and developer testing methods that attempted to reproduce the procedures I read about in articles and technical books. This included building handmade densitometers out of wooden index card boxes and setting up lights in my musty basement; none of these approaches were either simple enough or precise enough to teach me what I wanted to know or how all of this applied to the photography I wanted to do. Eventually I learned enough by trial and error to make the system work well, but when I decided to write the first edition of this book I knew I needed a better ...