This is a Zeiss-made lens that has a Sony E (NEX) mount. It could be the perfect thing if you're looking for a prime lens.
From Photospecialist
Zeiss Batis 18mm F2.8 E-Mount
OnBuy
ZEISS Batis 18mm f/2.8 Lens for Sony E
Clifton Cameras
Zeiss Batis F2.8 18mm E-Mount Lens