Viltrox says focus speeds are "150% faster", although I'm not sure what that's in comparison ... f/1.8 LAB lens is virtually flawless, much like the Nikon Plena lens, and the MTF charts shared ...

I was excited to learn that Viltrox was making its acclaimed Viltrox 135mm F1.8 LAB lens for Nikon's Z-mount, following its debut for Sony E-mount – after all, it's around a third of the price ...