The Sigma BF Review: Choose Form or Function?

When I first saw the Sigma BF at a pop-up store in NYC, I was instantly blown away by the minimalist design and spartan controls. I wondered how a camera that emphasized form to this extent would perform in the real world. Sigma claims that the BF is an exercise in "beautiful foolishness." We tested this camera to see if it is a work of beauty or a fool's errand.