Happy new year! I’ve been having a wonderful holiday season, largely thanks to Adorama for lending me this beaut of a lens. The Sigma Art 20mm f/1.4 is the widest, f/1.4 full frame lens, and is the newest addition to the much vaunted line of f/1.4 Sigma Art Primes available in Canon EF, Nikon F, Sony FE, Leica L and Sigma mounts. In this article, we’ll explore a bit of the more measurable aspects as well as the more touchy, feely parts of interacting with this lens. I shot this lens on both the Canon EOS 5D mkII and the Sony a7II via the EF>FE Metabones MkIV smart adapter, and it performed equally as solid on both cameras. Is this a viable option for full frame system shooters for fast, ultra wide applications? Well, seeing as there has never been a full frame compatible lens this wide, this fast, it’s forging new ground for many shooters, and that is pretty rare in this day and age. C’mon in to see some example images and read my rambling thoughts…