DxOMark has just tested the new Sony FE 16-35mm f/2.8 GM lens. This lens is already released and in stock at Amazon/ B&H Photo Video/Adorama. According to DxOMark result, tested on Sony a7RII, this is the best wide-angle zoom lens ever in the world. You can see the detail below:
Sony FE 16-35mm f/2.8 GM lens compared to other wide-angle zoom lenses:
Conclusions from DxOMark:
Another big strength of the Sony is that its image quality remains very consistent across its entire focal range — a relief for those accustomed to having to remember to coddle their lenses if they are weak at some parts of their range. Sony’s sharpness, for example, is ahead of its competitors over its entire zoom range.
With the new Sony EF 16-35mm f/2.8 lens, you are simply getting better quality images for about the same price you would pay for many of its f/2.8 wide-angle zoom competitors. Obviously this comes with the caveat that it helps you only if you are shooting with E-mount Sony cameras, especially their latest high-end models.
Read more at DxOMark.