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Canonrumors reports that new Sigma 70-200mm f/2.8 OS Sport and Sigma 70-200mm f/4 OS Contemporary lenses are rumored to be announced in early 2018. Sigma has been rumored for a while to introduce a new 70-200mm f/2.8 lens that will replace their current 70-200mm f/2.8 EX DG OS HSM version (see also this related patent). Like: Sigma Lens Facebook […]