Panasonic’s LUMIX G X VARIO 12-35mm F2.8 ASPH POWER O.I.S. (24-70mm for 35mm) is a very fast standard lens with conventional rotary zoom ring from Panasonic’s premium X range of lenses. The metal-barrelled construction contains 14 elements in 9 groups with Ultra Extra-Low Dispersion (UED) and Ultra High Refractive (UHR) glass to minimise chromatic aberrations and to retain high image quality right across the image area. Panasonic’s Nano Surface Coating reduces internal reflections while the 7-bladed circular diaphragm helps to produce attractive out-of-focus highlights. Being a Micro Four Thirds lens it is compatible with Panasonic LUMIX G models as well as with cameras manufactured by Olympus. At 305g, this lens weighs less than half of similar full frame lenses.