Nice,nice. Is this a Foveon design?
https://petapixel.com/2025/10/27/sigma-says-full-frame-foveo...
“But there are — to be honest, the project has been a little bit delayed… because every time we run the wafer and get the prototype sensor, we found some technical issues because we have never designed a sensor by ourselves."
I imagine that different silicon fabs or even different runs of the same fab have slightly different absorption on each focal plan in the sensor and calibrating that at high quality is tricky? Can you even do BSI? I have no idea