The Tamron 17-70mm f/2.8 Di III-A VC RXD Lens for Sony E is ideal for professionals and enthusiasts with moisture-resistant construction, vibration compensation IS, and a 22.5-105mm equivalent focal length. It features a bright f/2.8 constant aperture for sharp images in difficult lighting and excellent control over depth of field for selective focus. The Rapid eXtra-silent stepping Drive (RXD) motor provides quick, quiet autofocus with full-time manual override, compatible with Sony’s Direct Manual Focus. With a minimum focus distance of 7.5 inches and maximum magnification of 0.21x, it excels in close-up shots. The BBAR coating reduces flare and ghosting for enhanced contrast and color fidelity. Its optical design includes two molded glass aspherical and two low dispersion elements to limit chromatic and spherical aberrations and distortion. The lens is built for Sony E-mount APS-C cameras with a 25.5-105mm equivalent focal length, a rounded nine-blade diaphragm for smooth bokeh, and moisture-resistant plus fluorine coatings for protection against dirt and smudges. Vibration Compensation image stabilization ensures crisp images and reduces camera shake. Key features: 16 elements in 12 groups, angle of view 79°55' to 23°, 0.21x max magnification, 9 rounded diaphragm blades, 67mm filter size, 19 cm minimum focus distance, focal length 17-70mm (25.5-105mm equivalent), vibration compensation IS, Sony E mount, minimum aperture f/16. Included in the box: Tamron 17-70mm f/2.8 Di III-A VC RXD Lens for Sony E, front and rear lens caps, and lens hood.