Originally Posted by
Steve Sherman
It's nice to see others pursuing a Minimal Agitation form of film processing. Since 2003 this type of film processing is the only manner in which I have processed my sheet film. So, I believe I can speak with some experience on the topic. Many of your findings are on point. There are, however, several items I don't completely find to be true in my experience.
#1, almost never is local contrast adequate in a Normal contrast scene, therefore, the Minimal Agitation technique can alter and enhance those relationships without compromising the high values that are associated with Plus development. If by chance the final rendering of mid-tone contrast needs to be reduced, a simple addition of Green-light in the printing process with modern Multi-Contrast papers accomplishes that.
#2, I have had conversations with Mr. Kachel regarding his philosophy, while in theory, his approach is valid, it does not take into account the difference between a film's characteristic curve compared to that of Multi-Contrast paper's potential curve. In other words and in my theory, I forsake compressing tonalities by way of development contraction so those same mid-tones can be exaggerated in a much more aggressive manner by way of MC papers. Adjacency Effects is the exact reason mid-tones can "survive" that much compression. So, while, it seems backward or unnecessary to "compress" negative tonalities only to turn around and "expand" those same tonalities in the final printing process. The steeper curve of MC papers brings those mid-tones to greater vibrancy, unlike that of simple higher negative densities. Similar to the end justifies the means." As the author states, nothing really counts until the final silver print is in hand, and that is the exact place that I speak from.
#3, Just how much tonality a negative can "hold/record" is mostly associated with Adams's Zone System suggesting around 10 zones, that's more a product of Silver papers of the times and how much contraction the film can endure. Films have been tested to record 14-15 zones of contrast before their limits are realized. So, compressing that much contrast produces an extremely flat negative, yet, with Minimal Agitation and the exaggeration of tones by way of MC papers the limits are pushed to areas many film photographers are simply not aware exist.
Bookmarks