Upload & Sell: Off
My fav 85mm for portraits of all time was the 85mm F 1.5 Leica Summarex. The high amount of spherical abberation made it very nice for female portraits, but it did not have "excessive" softness in comparison to, say, a 135mm F 2.8 Canon SF lens.
I only shot it with film on M2 and M3 bodies, and I cannot recall what kind of background blur effects it produced compared to the Helios under discussion.(most of my portrait work with it was head and shoulders, not 3/4 body or larger) I wish some kind chap would mount one on an M9 and show us. If he had a Helios around adapted to a Canon FF, he could do a side by side comparison at F 1.5.
Finding decent images shot on digital with a Summarex seems illusive-I've searched many times, but only found one photographer in Italy using one extensively, and he mostly shoots it the way I used to, which means the background blur effects are not terribly discernable