1.Focal Length-12 to 45mm (35mm Equivalent Focal Length: 24 to 90mm) 2.Maximum Aperture--f/4 3. Minimum Aperture--f/22 4.Lens Mount--Micro Four Thirds 5.Format Compatibility--- Micro Four Thirds 6. Angle of View---84° to 27° 7.Minimum Focus Distance--4.72" / 12 cm 8.Maximum Magnification--0.25x 9.Optical Design--12 Elements in 9 Groups 10.iaphragm Blades--7, Rounded 11.Filter Size--58 mm (Front) 12.Dimensions (ø x L)--2.5 x 2.76" / 63.4 x 70 mm 13.Weight--8.96 oz / 254 g