Sigma 55 - 200MM Lens for Nikon SLR Camera 684-306 - This compact telephoto Zoom lens was exclusively designed for use with Digital SLR cameras. The image circle was designed to match the size of the image sensors of digital SLR cameras that also allows compact body and lightweight with overall length of 84.6mm (3.3in.), and weight of only 310g/10.9 ounces. It has a filter size of 55mm, maximum diameter of 70mm (2.7in.). This remarkably compact high performance zoom lens is ideally suited to a wide range of subjects. This lens has a minimum focusing distance of 110cm (43.3in.) and maximum magnification of 1:4. Digital cameras having image sensors larger than APS-C size, and 35mm cameras, should not be used with these lenses. If such cameras are used, severe vignetting in the images may result. The angle of view varies depending on the camera the lens is mounted on.