In 2013, Tamron released the SP 150-600mm f/5-6.3 Di VC USD, which became a runaway hit for the company, offering access to extreme focal lengths at a much more affordable price than before. In the decade since, 150-600mm lenses have exploded on the market, with many options available. This excellent video review takes a look at one such option, the Sigma 150-600mm f/5-6.3 DG DN OS Sports, and the sort of performance and image quality you can expect from it in practice.