The 2870mm f/28 DG DN Contemporary Lens for Sony EMount from Sigma is a versatile wideangle to portraitlength zoom characterized by its f/28 constant maximum aperture The design suits working in available lighting conditions while affording increased control over depth of field More lightweight and compact than similar 2470mm lenses, it's optical design incorporates twoMar 30, 21 · There are a number of options to the Sigma 2870mm F28, though solely certainly one of these is offered for each the Emount and Lmount The Sigma 2470mm F2Eight DG DN Artwork It is priced $0 increased, is 214mm (08in) longer and totally 75% heavierFeb 24, 21 · Sigma 2870mm F28 DG DN The 2870mm F28 DG DN is based on Sigma's existing 2470mm F28 DG DN lens, however, by making the widest focal length 28mm instead of 24mm, Sigma has been able to make this lens significantly smaller and lighter According to Sigma, this is the smallest and lightest lens in its class Field Review Sigma 28 70mm F2 8 Dg Dn Digi...