I just looked up in 'the Negative' what Adams has to say about\nminiature film development.\n\nPage 88:\n"The Problem of Grain\nThe principal consideration is: How should the miniature negative be\ndeveloped to preserve optimum scale of values and optimum refinement\nof grain structure? We know that fineness of grain is limited in\nrelation to the resolu. tiOll of the optical image; with anything\nsmaller than the optimum grain size a .'halo" of colloidal silver is\nproduced, which actually reduces definition. (For discussion of grain\nsize and the illustration of definition, see Book 1, page 35.)"\n\nHere Adams admits that considerations of graininess are paramount in\n35mm work.\n\nPage 89:\n"Since grain becomes coarser with increased development, the basic\nprocedure should be founded on ample exposure and moderate\ndevelopment. For any given film and developer apparent grain size\nseems definitely related to gamma. Con- temporary opinion holds that\nnegative granularity depends on two major factors: the graininess of\nthe particular film and the degree of development (gamma). Granting\nthis true in the broadest sense, we still must consider the effects of\nspecial developers-such as paraphenylene-diamine and formulas\ncontaining silver solvents."\n\nHere Adams tells us that graininess increases with development. No\nsurprises here.\n\nPage 89:\n"Miniature camera negatives are always enlarged with condenser\nenlargers."\n\nPge 91:\n\n"You may find that placing sunlit skin on Zone V II and developing for\n2/3 the "normal" (recommended) time gives satisfactory grain but\nperhaps fairly flat highlights on No.2 paper. On the other hand,\nplacement on Zone V with 1 1/4 normal development time may give\nwell-separated highlight values but more grain than is desirable. But\nnormal placement with less than normal development and use of a No.3\npaper may give exactly the emotional and physical results you seek.\nFrom such tests you can develop an awareness of the practical limita-\ntions of any given combination of film, exposure, development, and\nprinting. It is all a very subtle matter of personal decision, and\ncannot be evaluated in factual terms, nor determined by anyone other\nthan the individual photographer.\nSince fine-grain development reduces emulsion speed, a test for\neffective threshold should be made under your normal conditions of\nprocessing. The com- monplace "empty" shadows seen in so much\nminiature photography are due chiefly to reduced emulsion speed-though\nthey may result from excessively short development, which does not\nensure adequate distinction of values in the toe of the curve. These\nand other undesirable effects may be avoided by recognizing and\nallowing for the limitations of miniature photography.\n\nIn work with miniature films there is much less leeway in altering\ndevelopment procedures for special purposes than with larger\nnegatives. Therefore, visualization should not include reliance on\nspecial controls that may adversely affect grain size."\n\nThese points coincide with the statements I have made in the thread on\nvariable film development.