The professional Canon lens. 34-70 mm f/2.8 II Very light use Focal length 24-70mm, equivalent focal length 38.4-112mm on Canon APS-C cameras Constant maximum aperture F2.8; minimum F22, ring-type ultrasonic autofocus motor with full manual focus 82mm filters, closest focusing distance: 0.38m/1.25ft Image stabilization: No. Focusing adjustment: Inner focusing with USM. Diagonal viewing angle: 84° - 34°. Weight 1.8 lbs