Tamron SP 150-600mm Di VC USD G2 (Model A022) Ultra-Telephoto Lens + Teleconverters 1.4x and 2x: Faster AF Speed, Enhanced VC (Vibration Compensation), Minimum Object Distance Reduced to 2.2m (86.6in) for Optimum Tele-Macro Photography & Dramatic Bokeh, FLEX ZOOM LOCK 2016-09-02