Originally posted by stevebrot What are your Flash WB settings? (Default is Auto WB.)
Steve
Yes set to Auto WB (once I found it!)
I opened the jpg in Darktable and it indicated the colour temp was 6500K.
Surely the result in the shot is relative to each other. (That is what I intended and why I didn't obsess on colour temp.)
And note the background paper outside of the lenses - I would say the result is on the cold side.
EDIT
In reality the entire image circle of the A series is clipped so is neutral white.
I put the dropper on the unclipped crescents of the three 8 element lenses and they showed a slight green bias -- sort of around 80 82 80.
And the three 7 elements and the two s-m-c were biased to the red side of yellow -- sort of 90 80 70.