Focal Length: 9-18mm (18-36mm Equivalent) Max Image Magnification: Wide 0.05x (0.11x equiv) / Tele 0.10x (0.20x equiv) High-speed Imager AF (MSC) focusing system Angle of View 100-62 degrees Max Aperture: F4.0 (9mm) - F5.6 (18mm), Min Aperture: F22 12 Elements in 8 Groups Lens Configuartion Closest focusing distance of 0.25m Number of Blades:7 (circular aperture diaphragm) Filer Size: 52mm diameter