• While ensuring a high-definition depiction that is expected by a large aperture zoom lens, the size is easy to carry around with you at a high standard • The material is made of polycarbonate "TSC" (Thermally Stable Composite) that has a heat shrink rate similar to aluminum • 24-70mm F2.8 DG DN | Art successfully reduces the magnificent lens body by narrowing the zoom range on the wide-angle side. While the number of lenses is reduced, we use a lot of special glass materials such as 3 aspherical lenses, 2 FLD, and 2 SLDs, which are based on optical design technology to thoroughly correct for axial chromatic aberrations and sagittal coma aberrations that cannot be compensated by the camera side. You can enjoy uniform, crisp images from the center of the screen to the peripheral • Sony E-Mount • 28-70mm F2.8