An ideal complement to the 18-55mm zoom range of the SEL1855, this 3.8x zoom lens takes you from 55mm out to 210mm with consistently outstanding optical performance all the way. In 35mm full-frame equivalent terms that’s a wide zoom range of 82.5mm to 315mm, providing plenty of reach for outdoor sports or nature photography. Built-in Optical Steady Shot (OSS) image stabilization is a huge advantage when shooting at longer focal lengths or in low light, making it easy to capture crisp, stable images at up to four shutter speeds lower than would normally be possible. & if you shoot movies as well as stills, the built in motor contributes to quiet yet responsive autofocus & aperture operation that keep your movie soundtrack free from mechanical noise.