Sigma's new 85mm F/1.4 DG DN Art is all new lens made for e-mount and l-mount full frame cameras. Rather than adapting the architecture of their existing 85mm DG HSN Art lens, Sigma has started at ground zero, creating a completely new and Promethean offering made expressly for mirrorless systems. The new lens ticks every imaginable box, from a fast f/1.4 aperture, to a vastly lighter, yet equally rugged and premium build. The lens also comes packed with a number of tactile buttons, switches, and rings including an on-board autofocus lock (AFL) button, a physical on/off switch for autofocus, a physical aperture ring that can be de-clicked, and an 11 blade aperture that should definitely makes for some gorgeously smooth bokeh. Sigma has created a veritable powerhouse with their new 85mm DN, and aside from some easily correctable pincushion distortion and near-minimum-focus-distance softness, it's pretty close to flawless. Shooting with this lens is positively addictive and it's become my photographic raison d’être to over the past few weeks. For that, it gets the highest score we've ever assigned to an 85mm lens, a perfect 5 stars -and- the Ayrn Kudos Award. The 85mm DN Art is truly a masterpiece of optical engineering and innovation.