Bright F2.8 zoom lens with image stabilization for high-quality shooting. I am selling this as I received it as a gift and do not use it. - Brand: SIGMA - Model Name: 70-200mm F2.8 EX DG OS HSM - Focal Length: 70-200mm - Maximum Aperture: F2.8 - Lens Type: Zoom Lens - Features: OS (Optical Stabilizer) function - Lens Diameter: 77mm Thank you for looking.