Sigma has unveiled a handful of new lenses that will join the company's current lineup of Art lenses, which are designed to be high-quality alternatives of the competition, like Canon and Nikon lenses, but with a slightly lower cost than you would normally see with these companies. The four new lenses that Sigma announce are a 30mm f/1.4 DC HSM, 60mm f/2.8 DN, 30mm f/2.8 DN, and a 19mm f/2.8 DN.
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