Tamron 17-70mm f/2.8 Di III-A VC RXD Lens For Sony E

17-70mm Focal Length/ Di III-A Format Size/ F/16 - F/2.8 Aperture/ 79 Degrees - 23 Degrees Angle Of View/ 16 Elements, 12 Groups/ 1:4.8 (Wide)/1:5.2 (Tele) Max. Mag. Ratio/ Sony EMount (APS-C) Compatible Mount/ Moisture-Resistant Construction/ Fluorine Coating/ Fast Hybrid AF/ Eye AF/ Black Finish