Sigma SD-10.
The aqua background just looked better than white to me today. Hot lights, big tripod, some reflected natural light via a tube. Shot reduced in size totally by Photo Pro software. Minor, about +1.2, sharpening (again Photo Pro). 50/2.8 lens and I think the mirror has some specks.
Many, many, more details will follow later. As I said, this is a summer project. This camera has demonstrated the ability to make a great image. I've just need to adapt to the fact it works rather differently.
Until later this afternoon/early pm . . .