Click or scroll to zoom Tap or pinch to zoom Sigma 100-400mm f/5-6.3 DG DN OS Contemporary - L Mount Lens by Sigma $949.99 SKU 750969 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart The SIGMA 100-400mm F5-6.3 DG DN OS is designed exclusively for full-frame mirrorless cameras.