Tamron 70-180mm f/2.8 Di III VXD Lens (Sony E)
E-Mount Lens/Full-Frame Format
Six Low Dispersion Elements
BBAR-G2 and Fluorine Coatings
Floating Elements-System
Rounded 9-Blade Diaphragm
Aperture Range:f/2.8 to f22
Three Aspherical Element
Dual VXD Linear AF Motors
Moisture-Resistant Construction