Nice writeup. I've been very vocal in the past for my disdain for the Prominent. Lots of promise. On paper, everything looks great. In practice, yikes.
I won't repeat what has been said.
Voigtlander used the "focus by dial" approach on several cameras. The problem with it on the Prominent is the camera's weight. There's too much camera to try to twist that knob while also attempting to hold the camera. Rangefinders aren't the best tool for moving objects, and with the Prominent, it's downright impossible.
The Vito III (essentially a fixed-lens folding version of the Prominent) is a much better camera to use, and because it's lighter in weight, you aren't fighting the camera as much.
The eyepiece on the Prominent is too far to the right, and you end up poking yourself in the eye with the knuckle of your thumb, because the camera is so damn heavy that you have to grip it tightly.
Plus, it's ridiculous that you should have to pre-tension a shutter on what is supposed to be an auto-tensioning camera.
I see that this is turning into a rant.
The nice thing is that the Ultron is a very sweet lens. A lovely lens. I've not had a problem with flare, but it's only seen limited use.
A few years ago, I picked up an adapter that allows me to use this lens on a Zeiss Ikon Contax. All the benefits of the Ultron and none of the aggravation of the Prominent.
