sigma 18-250mm f 3.5-6 .3 dc os hsm if lens for canon af digital slr cameras filter size 72
the sigma 18-250mm f3.5-6 .3 dc os hsm incorporates sigma s original anti-shake compensation function with a 13.8 times zoom ratio . for the camera have anti-shake function in the camera body this lens s hybrid optical stabilizer provide not only anti-shake function for the camera body compensation but also provide the function to compensate the image shaking in the view finder of the camera like anti-shake compensation built in the lens . incorporating four special low dispersion glass elements and three aspherical lens elements provides excellent image quality throughout the entire zoom range . this lens has a minimum focusing distance of 45cm 17.7 inches at all focal lengths and a maximum magnification of 1 3.4 reproduction ratio making it ideal for close-up photography . an inner focusing system eliminates front lens rotation making it suitable for use with circular polarizing filters and the supplied petal-type hood . incorporating super multi layer coating reduce the ghost in the backlight photography .