Lens Construction: 11 elements in 9 groups (3 ED glass elements)Number of Diaphragm Blades: 9Minimum f/stop: 22 Closest focusing distance: 3.5m in AF mode (3.4m in MF mode)Maximum reproduction ratio: 1/7.7 in AF mode (1/7.5 in MF mode)Diameter: 159.5 x 351.5 mmWeight (g): 4440g
