The Tamron AF XR Di LD Aspherical [IF] MACRO 28 mm - 75 mm F/2.8 Lens is made to function with both a full framed camera and a smaller framed camera. This Tamron lens is perfect for everything from wide angle shots to close-up detail focused images. The super performance (SP) on the Tamron 2.8 lens is made with the highest quality lens that Tamron has to offer; when paired with the extra refractive (XR) glass, the Tamron lens becomes much smaller. The Tamron XR Aspherical 2.8 lens is well suited to any elements, even in weather extremes. A prominent feature of the Tamron XR Aspherical 2.8 lens is its center-aligned focuses that allows subjects placed in or near the center to be sharp, while the corners remain soft—perfect for intimate photographs such as weddings and other scenic events. The strong and sturdy structure of the Tamron 2.8 lens means that it attaches to the camera with great ease. The high-quality Tamron XR Aspherical 2.8 lens can enhance photographs to create high-resolution, top-notch pictures.