This Sigma 50-150mm f/2.8 EX DC OS HSM APO Telephoto Lens is a high-quality zoom lens that is perfect for SLR cameras. It has a maximum aperture of f/2.8 and a focal length range of 50-150mm, making it perfect for capturing stunning images with beautiful bokeh. It is compatible with Nikon F mount and is designed for full-frame cameras.In addition to its impressive focal length and aperture, this lens features a telephoto design that allows you to get up close and personal with your subjects, making it ideal for portrait and sports photography. It also has an advanced optical system that ensures clear, sharp, and detailed images even in low light conditions. With its durable build and reliable performance, this lens is sure to be a valuable addition to any photographer's toolkit.