Introduction Panasonic is overhauling its line up of older lens models, revamping the cosmetic appearance, and, where applicable updating focusing and image stabilization systems.This new model replaces the Lumix G Vario HD 14-140mm f4.0-5.8 ASPH Mega OIS lens – a hugely popular model with filmmakers, on account of its 10x zoom ratio and constant 0.5m minimum focus distance.As the equivalent to a 28-280mm, the original model had a complex optical construction comprising of 17-elements in 13 groups and used four aspherical elements and two ED lenses to reduce the size while lowering chromatic aberrations to a