Key features Lens Construction: 12 elements in 9 groups (2 aspherical lenses , 1 UHR lens) Nano Surface Coating: Yes Mount: Micro Four Thirds mount Optical Image Stabilizer: Yes (MEGA O.I.S.) Focal Length: f=45-150mm (35mm camera equivalent 90-300mm) Aperture Type: 7 diaphragm blades / Circular aperture diaphragm Maximum Aperture: F4.0 Minimum Aperture: F22 Closest Focusing Distance: 0.9m / 3.0ft Maximum magnification: Approx. 0.17x / 0.35x (35mm camera equivalent) Diagonal Angle of View: 27°(Wide) to 8.2°(TELE) Filter Size: ö52mm / 2.0in Max. Diameter: ö62mm / 2.4in Overall Length: Approx. 73mm / 2.9in (from the tip of the lens to the base side of the lens mount) Weight: Approx. 200g / 7.1oz (excluding lens cap and lens rear cap) Standard Accessories: Lens cap, Lens hood, Lens rear cap Featuring the high mobility thanks to the ultra-compact size and lightweight, the new LUMIX G VARIO 45-150mm/F4.0-5.6 ASPH./MEGA O.I.S. lens offers a versatile zoom range of 45-150 mm (35mm camera equivalent: 90-300mm) suitable for impressive telephoto shot of sports or animals which are physically difficult to come close utilizing rich depth of the field. Comprising of 12 elements in 9 groups, 1 UHR (Ultra High Refractive Index) lens and 2 aspherical lenses in the LUMIX G VARIO 45-150mm / F4.0-5.6 ASPH./MEGA O.I.S. achieves uniform descriptiveness from the center to the corners for high optical performance while maintaining its size compact. The LUMIX G VARIO 45-150mm/4.0-5.6 ASPH./MEGA O.I.S. lens incorporates Panasonic’s MEGA O.I.S. (Optical Image Stabilizer), which makes it easy to shoot super clear shots even in low-lit situations by suppressing the blur caused by a hand shake. The LUMIX G VARIO 45-150mm/F4.0-5.6 ASPH./MEGA O.I.S. lens incorporates superior inner focus system, which enables excellent resolution and contrast from full life-size magnification to infinity. The inclusion of stepping motor makes the focusing action smooth and silent for use in both photo and video recording. When mounted on the cameras of LUMIX G, users can take advantage of the high-speed, high-precision Contrast AF system. The 7 aperture blades consists a circular aperture diaphragm and produces an attractive smoothness in out-of-focus areas even shooting at large aperture. The new lens system uses multi-coated lens elements that reduce ghosts and flare to an absolute minimum, helping deliver a high optical performance.