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Good example! Is this Mölders' aircraft?Do you mean the orthochromatic film? Yes, in the case the yellow looks like very dark grey and sometimes almost black colour. What is more , the tone of the yellow is not too much important for the kind of film. Each of the yellow tone looks almost the same. Below the BF 109F taken with the kind of B&W film. Both the yellow engine cowling, the triangle below the cap of the fuel filler and the rudder are of the same very dark tone. The same effect we can noticed in pics of RAF planes and the yellow ring of the RAF roundel. IMHO, using of a filter more affect the tone of colours than the kind of film. Eg.. using of the yellow filter makes the colour looking like white and the red one is lighter than it can be noticed in pics taken with the standard film used by amateurs.
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