Why spend $13K on a #SonyEmount 400/2.8, when you could use a #Pentax M42 400/5.6 with #Fotodiox adapter combo for about $150??
Into #MacroPhotography? Put a #Hasselblad #MakroPlanar on your #NikonZ8! #BirdPhotographers should consider the #MinoltaMD 100-200/5.6 on their #OMSystemOM1ii!