Tamron : A046SF 17-28mm f/2.8 Di III RXD Sony Black

Compact and light weight for easy shooting
Stylish premium grade exterior design, VC anti-shake mechanism for steady shooting
Special glass elements used to correct aberrations, 28-300mm 35mm-equivalent focal length

Features a redesigned optical system from its previous generation, the tamron 28-75mm f/2.8 di iii vxd g2 lens for sony e mount (a063s) is a compact bright standard zoom lens, for full-frame sony e-mount, ideal for portraiture and landscapes photography
Revamped optics yield higher resolution and improved sharpness over the previous generation and the focusing system has been replaced with a voice-coil extreme-torque drive mechanism that achieves faster, more precise performance to suit both stills and video applications
The fast constant f/2.8 maximum aperture affords consistent illumination throughout the zoom range and also affords greater control over depth of field for working with selective focus techniques