FOR CROP SENSOR MIRRORLESS CAMERASSIGMA's DC DN lenses are made exclusively for mirrorless. and are designed primarily for use with crop sensor cameras. All DC DN lenses are available for Sony E-mount. L-Mount and FUJIFILM X systems. while our 16mm. 30mm and 56mm F1.4 DC DN | Contemporary lenses are additionally available for Nikon Z. Canon EF-M. and Micro 4/3.MAKE SURE YOU GET YOUR 4-YEAR WARRANTYAll SIGMA lenses come with a 4-Year Warranty in the US. but only if you buy from SIGMA America directly or a SIGMA Authorized Dealer. Grey market importers undercut legitimate retailers. deceive well-intentioned customers. and sell products that are ultimately not eligible for warranty service. Make sure you are buying from a trusted source so your lens is covered!