....…especially since I have researched a little on
"Foveon sensor", and found that the "columns" of receptors
can be touchy to exposure, and thus produce noise. Seems
that light might not travel far enough "down" into the column
and the sensor tries to figure it out, and produces a lot of noise.
At least that's one theory - and it was from a Sigma physicist.
Also said they are working to improve the "reception" of the
Foveon sensor so that it is always consistent. Also said, that
at that point, they may be able to go "full frame".