Sigma just unveiled the massive 60-600mm F4.5-6.3 DG DN OS Sports ultra-telephoto zoom lens for mirrorless camera systems, which should be a great tool for capturing everything from landscapes to wildlife and bird photos. Our colleagues at Imaging Resource, OP’s sibling website, have already got their hands on this whopping, 10x lens and posted a first look review. “Wildlife, nature, and outdoor sports photographers should all take notice, as Sigma has added yet another extremely versatile telephoto zoom to its arsenal of mirrorless lenses,” writes William Brawley, Imaging Resource‘s managing editor. “The new Sigma 60-600mm F4.5-6.3 DG DN OS Sports for Sony E-mount and L-mount full-frame mirrorless cameras is unique amongst Sigma’s existing telephoto zooms for mirrorless cameras — and indeed the full-frame...