espressogeek said:
That is interesting and I always heard their 40/1.4 was harsh but the 40/2 was much better. I assumed the optical formula was pretty similar to the 45/2.8 that Nikon uses but perhaps I am incorrect in that assumption.
There was a thread on photo.net about the Ultron lens. Someone did a liitle testing with the comarison to Nikkor 45mm F2.8 pancake lens, which has more of the older Nikkor bokeh taste. But you know photo.net has been down...
Also there are a few Japanese personal blogs that show the results from the Ultron lens, and the comments on the harshness of the bokeh were very similar with each other: Its wide-opening/F2, it's not as soft as other lenses. They say it's due to the aspherical design of the lens, etc.
But you know that's not the best way to hear other people's opinions based on what's on someone else's computer screen. So the best bet for your search is to find the lens somewhere, testshoot with your camera so you can feel it, process the neg, and see the result whether you like it or not.