Your question is 'is there any reason the derived values should be more correct....'
My question is: 'more correct for WHAT?'
Real scene is lit by some real (daylight) light source, not (imaginary/synthetic) black body at 6500K.
Both settings are 'not correct' for real image/real scene.
Your question is 'is there any reason the derived values should be more correct....'
My question is: 'more correct for WHAT?'
Real scene is lit by some real (daylight) light source, not (imaginary/synthetic) black body at 6500K.
Both settings are 'not correct' for real image/real scene.