System Requirement: 100 MB HD for Windows 7, Windows Vista, Windows XP (excluding Windows XP 64-bit) OS, 30 MB HD for Mac OS X v10.4x - 10.6x OS, 1 AA battery (included)
Type: SIGMA 30mm f/1.4 DC DN Contemporary Lens for Sony Mirrorless Cameras and APS-C format e-mount The lens is made in Brazil and features a maximum aperture of f/1.4, high-quality optical design with aspherical and high-refractive index elements, and a stepping AF motor for smooth, near-silent autofocus.