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Old 08-31-2014, 10:21 AM
  #617  
Zor
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Default Hue changes with illumination source.

Originally Posted by TonyBuilder
Panel lines are done, all masked off and ready for paint.

May paint today if it is not to windy.


TB
Hi Tony,

I see for the first time ( I beleive ) some fluorescent light fixtures on the wall of your working area.

It appears evident on my computer monitor that the two fixtures have fluorescent tubes coatings of different spectrum ( like soft white or daylight or whatever is marked at the ends of the tubes ) with the result that the observed hue of the painted parts would change slightly depending on the relative position of your observation.

I do not have to break my head anymore to understand what you have observed on an overall basis.

Reading back ( previous postings ) you have commented that the amount of mixing you do ( did ) was not the reason for the variation denoted as yellow and butterscotch ( a convenient term ).

The differences you illustrated earlier using two different parts in the same photo remain unexplained and I think it can only be due to different proportions of the pigments. I do not know the kind of mixing you have to do.

I am sure you will do some tests before painting the whole wing area.

Wishing you best success.

Zor