When you use DPReview links to buy products, the site may earn a commission. Image: Sigma Sigma has announced the full-frame 28-105mm F2.8 DG DN Art lens for L-mount and Sony E-Mount cameras. The company says the lens is meant to cover "several popular focal lengths," such as 28mm, 50mm, and 85mm while providing a constant aperture. The lens is constructed from 18 elements in 13 groups, with two fluorite-like 'F' low dispersion (FLD) elements, one super low dispersion (SLD) element and five asph...
When you use DPReview links to buy products, the site may earn a commission. Image: Sigma Sigma has announced the full-frame 28-105mm F2.8 DG DN Art lens for L-mount and Sony E-Mount cameras. The company says the lens is meant to cover "several popular focal lengths," such as 28mm, 50mm, and 85mm while providing a constant aperture. The lens is constructed from 18 elements in 13 groups, with two fluorite-like 'F' low dispersion (FLD) elements, one super low dispersion (SLD) element and five asph...
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