This SIGMA 24-70mm F2.8 DG DN II lens combines excellent optical performance and durability, making it ideal for professional photography. - Model Name: 24-70mm F2.8 DG DN II - Brand: SIGMA - Accessories: Case, strap, instruction manual - Focal Length: 24-70mm - Maximum Aperture: F2.8 I purchased this lens around October of last year and have used it about once a month. I am selling it because I am switching to a different lens! There are some scratches from daily use on the hood and lens cap, but I think it's in good condition! Also, I have been using a lens protector since I bought it, and I will ship it with the protector attached! Thank you!