Sigma 28-70mm F/2.8 DG DN Contemporary Lens for Sony E

Lens Specifications Mount Type: E-Mount, compatible with full-frame format cameras Aperture Range: f/2.8 to f/22, providing a flexible range for low-light conditions as well as depth of field control Optical Elements: Two FLD Elements: These are special low dispersion glass elements that help reduce chromatic aberrations. Two SLD Elements: Special low dispersion elements to further correct for color fringing and enhance image clarity. Three Aspherical Elements: Help to minimize distortion and improve overall sharpness. Coatings: Super Multi-Layer Coating: Reduces flare and ghosting, enhancing contrast and color accuracy. Nano Porous Coatings: These advanced coatings further improve light transmission and reduce the risk of lens flare. Front Coating: Water- and oil-repellent, making it easier to clean and maintain in challenging weather conditions. Autofocus System: Stepping Motor AF System, which allows for smooth and quiet focusing—ideal for both photography and video. Diaphragm: Rounded 9-blade diaphragm helps produce smooth bokeh and improves the quality of out-of-focus areas. Build Quality: Dust- and splash-proof design, ensuring durability and reliability in various shooting conditions.