[thxbb12]

Woah, an amazing optic in almost all categories:

https://www.lenstip.com/613.1-Lens_review-Voigtlander_Apo_Lanthar_50_mm_f_2_E_Introduction.html

Very impressive indeed with only one caveat: no AF :-(

[borisbg]

Hi Florent, impressive indeed.
Here is a better reviews (IMO) with some practical considerations and alternative s:
https://phillipreeve.net/blog/review-voigtlander-50mm-f2-apo-lanthar/

Enjoy

[Klaus]

The APO Lanthars are all pretty much no-brainers - if you don't mind MF - but they are also not overly "ambitious" regarding their max aperture.
Thus it's a fairly easy effort to make them great in the first place.