Function: All metal construction and durable. Exquisite workmanship, tight and jointed. Full manual operation, manual focus, manual aperture adjustment Manual exposure, aperture priority exposure, with camera for infinity focus Specifications: Color: Black Material: Metal Dimensions: Approx. 6.5 * 6.5 * 3cm / 2.6 * 2.6 * 1.2in Weight: Approx. 55g Package List: 1 x NEX Adapter