I tested some russian lenses...

[sockeyed]

I posted a thread over in the Optics forum of some simple tests I did with my Jupiters and I-61, specifically looking at focus issues on a Bessa R3A, but also making a few conclusions about bokeh and sharpness. I compared them to my CV 40/1.4, CV 75/2.5 and Canon Serenar 50/1.8, and posted sample images.

If you're interested.

http://www.rangefinderforum.com/forums/showthread.php?t=8646