I've been shooting with a Nikon 70-300mm lens for about 5 years and decided I needed more coverage Prices Nikon offers concluded that the Sigma 120-300 F2.8 DG OS HSM lens was the best choice for me. The Sigma 1.4 EX DG gives me 420mm with almost no degradation in image quality. The thing works great! Having read a lot of good things about this Sigma 2.0 EX DG it is now in my shopping cart and will soon have a lens covering 120mm @ F2.8 - 600mm @ 5.6, of course I must take the time to add it or remove teleconverters, but that's a small price to pay. Thank you Sigma for upping your game with the new Global Vision range, offering quality lenses and TC on a tight budget.
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