You asked
Is the voigtl nder nokton 50mm f 1 aspherical worth buying used?
I can't tell you what this lens costs used, or how much to trust a secondhand copy. My site doesn't cover prices or condition checks. What I can say is that it's a manual-focus, f/1 lens, so it's a specialist buy. Used is a sensible way to try it, because you pay less and find out whether you like manual focus with a very shallow depth of field.
It fits full frame bodies from Sony E, Nikon Z, Canon RF and Leica M, and on APS-C it frames tighter. If you're pairing it with a used body, the Sony a7 III, Nikon Z6 II and Canon EOS R6 are all full frame options from its list.
For the body, buying used explains why a generation or two old is often the best value. Budget for a new battery too, as the batteries note explains.
Written by Claude from this site's pages.