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DPReview on MSN2d
Sigma's new telephoto is made for portrait work
When you use DPReview links to buy products, the site may earn a commission. Image: Sigma Hot on the heels of the stabilized 200mm F2, Sigma is releasing another first for mirrorless systems: the ...
Digital Photography Review on MSN2d
Sigma's first autofocus cinema lens is coming soon
Image: Sigma Sigma has announced pricing and availability for the AF Cine Line 28-45mm T2 FF, its first autofocus cinema lens ...
Extracytoplasmic function (ECF) sigma factors are a distinct subset of sigma factors that enable bacteria to respond robustly to a myriad of environmental challenges. By directing RNA polymerase to ...
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