Sigma 100-400mm F5-6.3 DG DN OS Contemporary Lens for Sony E Mount - Black Remarkably lightweight and compact body High-resolution, high-contrast image quality Effective correction of aberrations and distortion Image stabilization (OS) of four stops AFL button, zoom lock, focus limiter, OS mode switch MADE IN JAPAN BrandSigmaGeneralTypeTelephoto LensWeightWeight1.63 kg