Panasonic Lumix G 42.5mm f/1.7 ASPH. POWER O.I.S. LensA standard portrait length prime, the Lumix G 42. 5mm f 1. 7 ASPH. POWER O. I. S. from Panasonic is an 85mm equivalent lens designed for the Micro Four Thirds system of mirrorless cameras. One aspherical element is incorporated within the optical design, which helps to control spherical aberrations and distortions for enhanced sharpness and accurate rendering. The f 1. 7 maximum aperture is particularly beneficial for selective focus imagery, and also