Quote:
Originally Posted by John Beaman
The colors were yellow, not red. That is a mistake made by people many years ago looking at an ortho-chromatic film print that makes yellow appear as a dark shade as red would. Unfortunately the myth is still around.
See also Eagle Editions' book on Hahn and his machines.
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The problem is that difference of colors on orthochromatic and panchromatic materials and using different colouring filters can show us unpredictable results.