What would you use the NEW Sigma 300-600mm F4 DG OS | Sports lens for? Sigma Tech Representative Steph discusses the most essential features that this lens brings. From optical stabilization to the constant F4 aperture it truly has it all. The Sigma 300-600mm lens is a powerful choice for sports, action, and wildlife photography. This lens will be available in Sony E-Mount and L-Mount. To learn more click the link in our bio. #Sigma #MadeinAizuJapan #Sigma300600mmSports