>>4428020I've seen multiple sites claim that there's jjust enough of a design difference that it makes them seem all ever slightly soft, tthe faster the softer kind of thing. might be another one of those leica schizo things then like for example here
https://www.l-camera-forum.com/topic/300389-my-russian-lens-focuses-correctly-on-a-leica-oh-no-it-doesnt/also apparently lomography at some point took a bunch of l39 russian lenses and sold them "adjusted for leica" whatever that entailed, to further muddle things up.
