With the SIGMA 16-28mm F2.8 DG DN | Contemporary Lens for Sony E, experience the perfect blend of portability and performance in a compact, lightweight design. This high-performance ultra-wide zoom lens features a constant F2.8 aperture, delivering exceptional optical quality within a robust and lightweight body. Designed for Sony E-mount shooters, this lens opens up new possibilities for those seeking professional results in a compact package. Its excellent field curvature correction ensures exceptional edge-to-edge sharpness, a critical feature for wide-angle applications. The lens is equipped with five FLD elements and four aspherical lens elements, minimizing aberrations and ensuring optimal image quality. The inner zoom mechanism of the SIGMA 16-28mm F2.8 DG DN | Contemporary Lens maintains a consistent overall length throughout the zoom range, providing balance and stability. This feature, along with the lens' constant center of gravity, makes it ideal for gimbal use. A built-in front filter thread allows for easy attachment of filters, enhancing its versatility. Weighing just 450g and measuring only 100.6mm in length, this lens is a practical and portable option for everyday shooting. It's particularly appealing for landscape, wedding, and travel photographers who need to carry their equipment for extended periods. The lens is optimized with the latest optical design technology, delivering exceptional image quality despite its compact size. The two large-diameter aspherical lens elements and five ideally arranged FLD glass elements effectively suppress lateral and vertical chromatic aberrations. The F2.8 constant aperture provides a shallow depth-of-field for beautiful out-of-focus areas, while the nine rounded diaphragm blades ensure smooth and circular bokeh. The SIGMA 16-28mm F2.8 DG DN | Contemporary Lens also features the Super Multi-Layer Coating to counter ghosting and lens flare, delivering high contrast results even in challenging backlit conditions. Its fast and silent autofocus, controlled by a stepping motor, makes it ideal for shooting in quiet environments. Constructed with Thermally Stable Composite (TSC), a polycarbonate with a thermal contraction rate similar to aluminum, the lens functions at peak performance even in harsh temperature differences. The precision of each component and the finished product's simple beauty are a testament to SIGMA's unparalleled manufacturing technology and rigorous quality control. In summary, the SIGMA 16-28mm F2.8 DG DN | Contemporary Lens for Sony E is a sophisticated, versatile photographic tool that offers photographers and filmmakers an effortless blend of portability and performance.