A wide-angle lens for photos and videos. Equipped with an advanced optical design that includes two aspherical elements and an ED (Extra-low Dispersion) element for incredible high resolution from corner to corner, as well as beautiful background blur (Bokeh). Two dual linear motors provide fast, precise autofocus with excellent tracking performance. The autofocus and tracking in this compact and lightweight Sony G lens are very quiet. The internal focusing ensures a stable image angle during focusing. The SEL50F25G is an excellent video lens, offering smooth, fast, and continuous autofocus performance for filming.