Sony 55-300mm telephoto zoom lens : Sony introduces the DT55-300mm F4.5-5.6 SAM (SAL55300) telephoto zoom lens for A-mount cameras. From flattering portraits to wildlife and extreme outdoor sports: every subject’s covered with the new Sony telephoto zoom lens. Optimised for all Sony Alpha A-mount cameras with APS-C sensors, the compact, stylishly designed interchangeable telephoto zoom lens brings the action closer at a compelling price tag for every photographer. A versatile 5.5x magnification range covers focal lengths from 55mm to 300mm. At maximum zoom, this represents 450mm super-telephoto (as 35mm equivalent): plenty of power to capture the grace of animals in the wild or nail-biting track-side action.