Sigma's new 60-600mm f/4.5-6.3 DG DN OS Sports lens is potentially one of the most versatile lenses on the market right now, covering a massive focal length range that should be appealing to bird, sports, and wildlife photographers. Can it still offer the kind of image quality and performance we have come to expect from Sigma despite that extreme design? This excellent video review takes a look at everything you can expect from the lens.