Just posted: Tamron 15-30mm f/2.8 Di VC USD G2 Lens Review.
Do you want an f/2.8 aperture and image stabilization in a full-frame ultra-wide-angle focal length lens? This lens and its predecessor are still your only options.
The Tamron 15-30mm f/2.8 Di VC USD G2 Lens is in stock at B&H | Adorama | Amazon USA | WEX
Rent the Tamron 15-30mm f/2.8 Di VC USD G2 Lens from Lensrentals.