Argyrotype

The Calibration Negative test print shows a short toe, quickly reaching midtone before a long shoulder runs down to Dmax.

Initial tests encountered issues with the Argyrotype sensitiser not soaking into the Platinum Rag and shedding a significant amount of density during processing. This was nearly completely cured by prewetting the paper with 0.6ml of Kodak wetting agent diluted 1:200 with distilled water and letting it dry for five minutes before coating with 0.9 ml of Argyrotype sensitiser. Care needs to be taken not to use too much wetting agent, else the sensitiser absorbs so quickly that it becomes impossible to achieve even coating.

A blood test report displaying a scale for TruNeg Standardize Negative results, with two arrows pointing to specific points on the scale, and a timestamp of August 25, 2019, at 9:00 am.
Nighttime shot of a waterfall in a wooded area, with rocks and trees surrounding the scene.
A graph showing the relationship between Log Negative RGB Density and Log Positive RGB with annotations indicating different image processing steps such as "CLEAR FILM," "Print Just Black," "Pos Just Black," and "Print Just White." The graph has a dark background with yellow and teal lines representing data trends.
Download: Argyrotype_Profile_01