Given the size of the 414's sensor , some 6 x 6mm, unless you want a longer flange focal distance, I wouldn't go for medium format lenses, esp, vintage era with potentially lower spec glass and the potential to amplify optical aberrations more, compared to new-ish fullframe or APS-C lenses, which now will routinely use ED glass and modern multicoating and modern optical design and manufacturing methods.
Best
JA
|