Summicron 50 v4 "Beaver tail" hasn't grow on me and bw film, yet.
I see it sharp and neutral and this is it:
I think, it is even more sharp than Rigid I had:
But even re-shimmed for FSU J-3 is sharp enough for me on M3 DS ELC:
My Jupiter-3 copy is one of those lenses where you develop, scan or print for first time and you knew right away it is yours lens.
It didn't happened with the Rigid, nor with Cron 50 V4. Both good on color, film and digital, but not on BW film, prints for me. I think, I might go back to collapsible Cron. It was very pleasing for BW. Plenty of unique character to be different from Jupiter-3 and worth of keeping for M3 DS ELS.
Oh, I received returned phone call this morning. My M4-2 is up to procedure soon. And it needs another part, again. Walking around, traveling with this camera anywhere and anytime for two years is going to cost me...
But if I could get it back working again, the Summarit-M 35 2.5 is the best lens I ever have for BW (well, color and digital as well). It is not only "you know it from first film" lens, it is the lens which amazes me almost with every right taken, good printed frame, print...