Tamron SP 35mm f/1.4 Di USD Lens For Canon EF

35mm Focal Length/ 9 Circular Diaphragm Blades/ 14 Elements In 10 Groups Lens Construction/ 72mm Filter Diameter/ BBAR-G2 Coating/ Dynamic Rolling-Cam Mechanism/ Moisture-Resistant Construction/ Locking Lens Hood/ Four LD (Low Dispersion) And Three GM (Glass Molded Aspherical) Lens Elements/ F/1.4 Maximum Aperture/ F/16 Minimum Aperture/ Black Finish