Sony's compact standard zoom — the Zeiss-branded 16-70mm f/4 for APS-C E-mount cameras.
The Sony E 16-70mm f/4 ZA OSS is a standard APS-C zoom from Sony/Zeiss for E-mount cameras — Vario-Tessar T* design with OSS stabilisation. Sony E mount.
16-70mm focal length (24-105mm equivalent on APS-C). f/4 constant maximum aperture. ZA = Zeiss Alpha designation. OSS. APS-C. Sony E mount.
The Sony Vario-Tessar T* E 16-70mm f/4 ZA OSS (SEL1670Z) is a Zeiss-branded standard zoom for Sony APS-C E-mount cameras — T* coating, constant f/4, OSS stabilisation. ZA (Zeiss Alpha) indicates the Zeiss collaboration branding. Despite 'FE' appearing in the catalog name, this is an APS-C E-mount lens (SEL1670Z), not a full-frame FE lens.
On the used market the Sony/Zeiss 16-70mm f/4 ZA OSS is a premium APS-C standard zoom. Condition checks: constant f/4, OSS, T* coating. Sony E mount.