I am encharmed with this lens. As You mind to see, it is very sharp wide open. It has amazing color rendering and legendary bokeh..I hope I a few more photos with this lens.
(Why Biotar 2/58 is discontinued but eg.Sonnar 1.5/50 is still manufactured? I know that there is close construction like ZM Planar 2/50, but it is shorter than short-tele like 58-60mm (87-90 eqv.) and more symmetrically designed..moreover, it still doesn't have that kind of bokeh). IMHO Biotar 2/58 is best Carl Zeiss Fifthy for Nex-7
As far as I know, it depends on line. ZF-II/ZE/ZS is made mainly by Cosina, only most priced models like Distagon 2.8/15 ZF-II/ZE are made in Germany (Zeiss Oberkochen facility). Other example was, just discontinued, ZM Sonnar 2/85, which bears name of "Made in Germany". ZA lenses are manufactured at Japanese Sony Facilities (with Zeiss Quality Management and half of materials is delivered by Zeiss AG).
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