I'd like to know how to go about testing a film for making in-camera colour separations.
What should I be looking for when looking at spectral sensitivity and density curves?
I'm thinking of using Bergger film that has a linear straight line, but the spectral density chart looks like three skewed humps, with increasing peaks at 450-nm, 575-nm, and 690-nm.
I do have a densitometer that I got a while back, and which I've never used.
I have Lee tri-colour filter set 25, 58 and 47B. When I phoned Lee, they told me each of these filters has the same filter factor (6x) even though, to me, the 47B appears to let less light through.
I don't really understand what I need to achieve an 'ideal' set of negs, so I'd really appreciate some pointers.
Thanks
David
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