The increased power of the new DDSSM system provides faster, more precise, quieter autofocus drive capability, for outstanding performance when shooting stills and movies. Unsparing application of leading-edge technology achieves refined G Master performance with consistently high resolution and soft, natural bokeh even at the widest F1.4 aperture setting.
This is a beautiful lens, solidly built, with nice features. It is relatively lightweight for a lens of its type. Importantly, this lens allows enables creative choices not found in slower wide angle lenses. Great fun.
I was deciding between this and 35mm 1.4 Zeiss. Pick this and it is so light weight and now it's not getting off from my camera for landscapes, street photography and environmental portraits.