Sigma developing 'world's first' 16mm F1.4 lens for crop sensor E-Mount and MFT

Sigma was teasing a lens announcement for PhotoPlus 2017, and today they (sort of) delivered. The company has announced development of the upcoming Sigma 16mm F1.4 DC DN | Contemporary--a compact, high-speed, wide-angle lens designed for Micro Four Thirds (MFT) and Sony APS-C E-Mount cameras. (Note: this lens is designed for crop sensors, and will produce vignetting on full-frame cameras.) The company is calling this, "the large-diameter wide-angle lens for which mirrorless camera users have bee...