The Sigma 20-200mm F3.5-6.3 DG Contemporary ($999) is the first all-in-one zoom lens for full-frame cameras to start at an ultra-wide angle of view. The 20mm starting point makes it more useful for ...
The Sigma 35mm F1.2 DG II Art ($1,549) brings a host of upgrades to the earlier 35mm F1.2 DG DN Art lens. An all-new optical formula cuts significant size and weight away from the original, and linear ...