This high-performance zoom lens equals the performance of fixed focal length lenses from 15mm to 30mm, an unprecedented achievement made possible by the development of its unique XGM (eXpanded Glass Molded Aspherical) lens element that effectively controls aberrations and enhances sharpness. The Tamron 15-30mm is the first zoom* to combine such a wide range of coverage, a fast f/2.8 aperture and image stabilisation.