Keith Tapscott. wrote:Ornello wrote: There is miniature B&W technique and there is large-format B&W technique. It is not unusual for workers to use different developers, agitation methods, film speeds, enlargers, etc., when working with different formats.
Last year, I wrote part of what I hope will be a good source book, but I have not finished it, and the sample I sent to one publisher was not embraced with enthusiasm. They want manuscripts about digital, apparently. Most of what I know can be found scattered here and there in older publications. dating from the 30s to the 50s. I can send you the partial manuscript if you would give me your e-mail address.
You have mentioned before in previous post about writing a book, is this about 35mm B&W photography or 35mm history and technique in general?

It is about optimal 35mm B&W technique and the historical factors behind it. Miniature cameras (35mm) evolved from 35mm motion-picture cameras in the 1920s; those who were acquainted with cine development and printing (especially in Europe, where the Leica appeared) were able to get good results early on; on the other hand, those who approached the new format with exposure and development techniques used on larger formats (mostly in the US) got lousy results. (This is the reason behind the much slower adoption of 35mm cameras by newspapermen in the US until well into the 1960s.) It was not until the appearance (in 1926) of Kodak D-76 as a fine-grain cine developer that there was a really good developer for miniature work. Of course, some, who were accustomed to their older, harsher developers, continued to use them, and so they did not reap the benefits that D-76 offered. It was to be a number of years before D-76 received wide acceptance, but even finer-grained developers were formulated in the 1930s, using paramine; these developers indeed yielded finer grain than D-76, but they required a significant increase in exposure and offered poor sharpness. The usage of paramine developers declined after WWII, when D-23 was formulated by Kodak (1943), and by the late 50s they had largely fallen out of favor. Kodak's proprietary Microdol (introduced about 1948) and the improved Microdol-X (introduced about 1959) were evolved from D-23; there is no advantage to using the inferior paramine developers today. Miniature workers today can choose from high-definition developers (the oldest ones, such as Rodinal, are crude and harsh, and are most suitable for slow films, but the latest high-definition developers such as Paterson FX-39 are usable with even the fastest films), standard fine grain developers (such as ID-11/D-76, etc.), and extra-fine grain developers (such as Kodak Microdol-X, Ilford Perceptol, and Paterson Aculux 2).
Looking in older materials is often quite illuminating. In an old
Photo Lab Index, I found a table listing the gamma (degree of development) for various formats, including cine film (which is given the lowest development). It was quite instructive that the greater the magnification (smaller the format) the less the degree of development. This principle has been known for decades, but you probably won't find it in recent publications. Thus, sheet film is developed more than 35mm film (still or motion picture).