Archived posting to the Leica Users Group, 2000/12/12
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]John Hicks jotted down the following: > At 01:23 PM 12/12/00 -0500, Martin wrote: > >> Development took place at 72F (the normal room temperature of my >> improvised darkroom) for 90 minutes in Rodinal diluted 1:100. > > Why did you use 1:100? Using normal agitation, development time for those > films is around 7-10 minutes. Why not? I think I probably just used it as a starting point on the recommendation of Tom A, but I'm not sure that the question was ever raised. I never thought of using it at higher dilutions but maybe that'd be a good thing to try. What effects should I expect? Less dense negs? Less contrast? I get development times of about 15 minutes in 72F with Rod 1:100, 19 minutes at 68F. I think the negs would be underdeveloped at 7-10 minutes, using normal agitation. > I think your tests show that 1:100 is too strong for stand development; Why do you say this? Seriously, I'm no development expert, so I'm hoping I can learn something here. M. - -- Martin Howard | "Any sufficiently advanced technology Visiting Scholar, CSEL, OSU | is indistiguishable from magic." email: howard.390@osu.edu | -- Arthur C. Clarke www: http://mvhoward.i.am/ +---------------------------------------