Seems logical to me that one could beam solid green light for low contrast, then solid blue light for high contrast?
You may run into some differences due to reciprocity issues.Just watched a short video on YouTube...the flashing nature of the exposure tube doesn't somehow affect VC paper exposure?
The Ilford Multigrade head or if you can find one, the Oriental VC-CLS head, are the gold standard for variable contrast printing.
+1Well, I´d rather say "it used to be".
I think the Heiland LED Cold Light Source with the Splitgrade Controller & Splitgrade Comfort are the current gold standard.
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