If you want a true historic answer related to Talbots original salt prints (photogenic drawings), contrast is not inherent in this process. If you use his original formulation and dry in darkness, a scan can provide what you may be looking for. But then people on this site will probably say that I donít know what Iím talking about.
i know you know what you are talking about, and would love to read talbot's writings related to his original salt prints.
can you tell me if they are available to read online ?