When I asked the question about the data that Kodak has provided I was thinking more in terms of visual comparison of grain and sharpness than in characteristic curves and contrast/time charts. The information at Ron's link summarizes what we should expect with different developers, in general, but does not show any specific visual comparisons of grain and sharpness comparing one specific film in different developers. That is the kind of information I would be interested in seeing.
Sandy King
Let me get this straight. Am I expected to provide information comparable to the charts and tables Kodak provides for their developers for any formula I suggest in the APUG forums? I would certainly do that if I were expecting to make enough money from sales to cover the cost of such tests. To the best of my knowledge, that is not the purpose of APUG.
If anyone wants to assert that a formula I suggest will not work as I say it did for me, it is usually a simple task to whip up a batch and test the assertion. The promotion of the KISS principle is one of my purposes in life.
Let me get this straight. Am I expected to provide information comparable to the charts and tables Kodak provides for their developers for any formula I suggest in the APUG forums?
When I asked the question about the data that Kodak has provided I was thinking more in terms of visual comparison of grain and sharpness than in characteristic curves and contrast/time charts. The information at Ron's link summarizes what we should expect with different developers, in general, but does not show any specific visual comparisons of grain and sharpness comparing one specific film in different developers. That is the kind of information I would be interested in seeing.
Sandy King
The major problem is they are time consuming tests and costly and probably no magazines now would pay to have them done again. I don't have the magazines any more, it was possibly Camera, a UK magazine that was around late 70's until the mid 80's. Films have improved since and so the data's no longer valid but it would be great to see something similar again.
I think Ilford published something once in a Guide, or perhaps Jack Coote's B&W Ilford book, but it's odd that Kodak didn't do something.
Ian
Well, again I must say that I have seen the differences even in magazines Ian. And differences could clearly be shown in some of the journal articles I read.
PE
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