The used Sigma 70-200mm F2.8 APO DG HSM OS lens for Nikon offers professional-grade telephoto performance with a fast constant aperture of f/2.8, ideal for low-light and action photography. Its Optical Stabilizer (OS) reduces camera shake, ensuring sharp images even at slower shutter speeds. The APO (Apochromatic) design minimizes chromatic aberrations for superior image clarity and color accuracy. Equipped with a Hyper Sonic Motor (HSM), it provides fast, quiet autofocus, making it suitable for both stills and video. This lens is a reliable choice for photographers seeking versatility and high optical quality in a used condition.