With the highly versatile, ultra compact Sigma 18-250mm zoom lens, high quality images are assured across the zoom range while the state of the art Hyper Sonic Motor ensures fast & quiet auto-focusing. Despite its small
Dimensions, the lens boasts a massive 13.8x zoom ratio as well as incorporating Sigma ¯34;&8217;s unique Optical Stabiliser (OS) technology to help counter camera shake at slower shutter speeds that can cause ruin crisp image quality. What ¯34;&8217;s more the system links to the anti-shake systems built into the Pentax & Sony camera bodies. g. With the magnification ratio of 1:2.9 & a minimum focusing distance of 35cm, this is a great choice of lens for close-ups. The Super Multi-Layer coating helps to reduce flare & there ¯34;&8217;s a magnification scale included on the lens barrel. As a lightweight, compact all-rounder, Photography Monthly picked out the Sigma 18-250mm as its super zoom winner saying that ¯34;&8216;it ¯34;&8217;s nicely screwed together, offers assured focusing, sound shake reduction & decent optical quality ¯34;&8217;.