Kolari Vision has released a detailed disassembly and teardown of the Sigma BF , offering a rare look inside one of the most visually distinctive mirrorless cameras on the market. Known for its infrared conversions, optical filters, and deep involvement in experimental imaging workflows, Kolari Vision approaches the teardown not just from a hardware curiosity standpoint, but with a focus on optical performance and system design. Kolari also highlights its products that are compatible with Sigma cameras, like its Magnetic Clip-in Filter system designed for cameras like the BF, fp, and fp L. But beyond filtration and workflow integration, the teardown itself reveals something more striking: a camera built around extreme minimalism and tightly integrated internal engineering. As PetaPixel reported when the BF was announced early last year, the camera is milled from a single block of aluminum, and Sigma can make only about nine units per day. It takes seven hours to mill the block for a single camera.…