Originally posted by kosmoejtg Since these lenses are manual does it makes sense to just get a legacy manual lens for less? What is the attraction of these lenses?
Correct me if I am wrong, but these lenses are also made with aspherical elements and extra low dispersion (ED) glass types.
ED glass in legacy lenses was quite "exotic" and for the vast majority of legacy lenses, only spherical glass elements were used. Only in the latest stages of the "MF Vintage Lens Era" had computing and manufacturing techniques evolved to such a point, where aspherical designs became practicable.
Thus, one might expect that these modern MF lenses are (much?) better controlled in respect of aberrations, flare and the like.