Top features: – Wide-angle lens with superior optical performance – Enhanced design with metal elements and aspherical glass lenses Wide-angle lens Delivering superior optical performance and functionality, the Sigma 19 mm f/2.8 DN Wide-angle Prime Lens is compatible with the Sony E mount and has been designed to meet the expectations of creative photographers. With a 35 mm focal length equivalent of 28.5 mm, this 19 mm f/2.8 Wide-angle Lens is ideal for landscapes, architecture, interior photography and more casual shots. With a rounded seven blade diaphragm, the lens can create an attractive bokeh at large aperture settings. Enhanced design Three glass mold aspherical lenses help correct distortion and field curvature, while the inner focusing system corrects the fluctuation of aberration for maintaining image quality regardless of focusing position. The simple design features metal on almost all external areas and varying textures so that it’s easy to distinguish each part of the lens. The DN Wide-angle Prime Lens also benefits from a linear AF motor, which moves the lens unit directly without the need for gears or extra mechanical parts. This system makes it easy to record video and take photos accurately and focus in on the details without disturbing anyone.