Camera Talk

It's the Voigtlander Prominent, and it's not even close.

The ergonomics of this camera, combined with the weight and the "focus by dial" system make this a real struggle to use.
The Ultron is a really great lens, however.

Never used a Prominent. The Vito series had good ergonomics and Voigtlander made many smooth, sweet cameras with good lenses. But with that weight, viewfinder placement and focus-by-dial, you have a good argument there.