This Sigma USA Auto Focus Camera Lens is a versatile piece of equipment for any photography enthusiast. With a focal length of 70-210mm and a maximum aperture of f/4-5.6, it is ideal for capturing stunning images from a distance. The lens is compatible with Sigma mounts and features a zoom focus type, making it easy to capture a variety of shots. Additionally, it comes with a Tiffen filter with a diameter of 52mm to ensure that your photos come out looking their best.