ABSTRACT
To fully understand photographic material characteristics and behavior, individual testing is unavoidable. Every brand of film, paper and processing chemical contains different ingredients, and there are too many external influences to make universally valid recommendations. This is why responsible technical authors always propose verifying the key characteristics of your favorite materials with a few tests, and test instructions typically start with the suggestion to only use fresh materials. https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780240816265/ffb21561-2f2c-4dca-99ec-f086fc154d4d/content/figch46_u1_OC.jpg" xmlns:xlink="https://www.w3.org/1999/xlink"/> © 2004 by Peter De Smidt, all rights reserved
