Here are the full specifications and pictures of the upcoming two new Sigma lenses for Sony E and L mounts (previously reported here): Sigma 500mm f/5.6 DG DN OS | Sports     Lens construction: 14 groups, 20 elements (3 FLD elements, 2 SLD elements) Viewing angle: 5° Number of diaphragm blades: 11 (rounded diaphragm) … Continue reading Here are the upcoming Sigma 500mm f/5.6 DG DN OS Sports & Sigma 15mm f/1.4 DG DN Diagonal Fisheye Art lenses (full specs and pictures)