Image courtesy: Photozone.
Two top lens review sites tested the new Zeiss 24-70mm f/4.0 FE lens. And this is what they write about the lens:
The Carl Zeiss Vario Tessar T* FE 24-70mm f/4 OSS ZA didn’t really convince us completely – not at this price point for sure. While it is a joy to use the lens thanks to its high quality finish and super smooth controls, the optical characteristics aren’t quite as impressive. Sony/Zeiss seems to follow the ugly trend of under-designing lenses based on the assumption that digital correction will fix the flaws
In terms of build quality, the Sony FE 24-70 Zeiss is excellent with an all-metal construction and that characteristic Sony and Zeiss matte black design. When it comes to image quality, however, this particular lens misses the mark. With less-than-stellar performance in sharpness, particularly in the corners at all focal lengths (and even stopped down), plus strong vignetting and distortion, the Sony FE 24-70mm ƒ/4 ZA OSS Carl Zeiss Vario-Tessar T* didn’t meet our expectations.
As you see both reviewers are not very satisfied with the lens performance. A good lens…but not stellar as expected from a lens with a Zeiss badge on it. I hope Sony will take note of it and offer a slightly higher quality version zoom lens in future!