Sigma 28mm f/1.4 DG HSM ART Lens for Sony E-mount Cameras, Black #441965

Sigma 28mm f/1.4 DG HSM ART Lens for Sony E-mount Cameras, Black #441965 Type: Wide Angle Lens Diameter: 77 mm Compatibility: Sony Focus Type: Auto Focus Focal Length: 28 mm Aperture: Maximum: f/1.4 Minimum: f/16 Filter thread (Diameter): 77 mm Specifications: Rounded diaphragm The 9-blade rounded diaphragm creates an attractive blur in the out-of-focus areas of the image.