Legendary, but affordable lens.
there is not much you can say about this lens. my favorite for filming, and ofter also for stills.
you might want to try it out.
before you do it, keep in mind: this lens contains Thorium, and is therefore radioactive.
it's common knowledge that the level is far below risky levels, but I shall not forget to mention ;)
It's a M42, comes with adapter for Leica LM and Sony NEX (yes a7iii, and sisters)