I think we are seeing why there are no other manufacturers using the Foeon tech.
Sounds convincing. The only question is if this is a Foveon sensor
limitation, or Sigma messed up something else. E.g. it might be
that heat dissipation in Sigma is not as optimized as in CP5700. Or
Sigma electonics noises disturb something in the sensor.
It would be very interesting to see some other company using Foveon
sensor.
--
Vladimir.