Siri,
Unfortunately, the color values (cc filtration values) are not standardized
and vary widely among enlargers. This is even true among different models
from the same maker. I have two heads for my enlarger, the same part number
item, and they are more than slightly different.
The best advice I can give you is to pick one enlarger for your color work,
stick with it, and learn its behaviour well. Then you can make quick and
accurate judgements how to adjust filtration values to get the results of
your mind's eye.
John P
______________________________________
there is no "never" - just long periods of "not yet".
there is no "always" - just long periods of "so far".
Siri Bjoner <sbjoner@xxxxxxxxx> wondered:
>
>Still busy in the darkroom, but noticed something weird today; I'm
>currently working on two different enlargers (one cheapo east-European [#1]
>and one Durst 506 (or is that 605?) [#2]). The thing is, they both are
>colour enlargers; but when I test out the values of the different filters
>(C, M, Y) they are completely different! Even at the same aperture! The
>values of #1 go to 200, #2 to 130, but they are nowhere near alike at any
>point. #2 "looks" more correct, as the values on #1 look more like Y,
>purple and green.
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