Originally Posted by falconeye
Their AF lenses for Sony are also quite state of the art, I guess.
The AF lenses in the Sony system, named Zeiss, are not built by Zeiss, but are Sony lenses produced under Zeiss patent. Zeiss set out some standards, for Sony to be allowed to produce lenses under Zeiss name, and then Zeiss has some overview of it.
It is like the Leica lenses that Panasonic are allowed to produce in auto focus for their bridge-cams.
There are some lenses that are very interesting though. I would love to see an equivalent 135/1.8 Auto Focus lens for Pentax. And the 85/1.4 is good too.
But as Jens R. wrote in an older thread on DPr, regarding a Sony vs. Pentax discussion :
"Knowing that Sony's lens line-up consists of rebadged Tamrons and the Zeiss-badge-engineered lenses, I wonder what attracts you"