The about $1399 Sigma 14-24mm F/2.8 DG DN Art is here. It might be the finest 14-24mm zoom ever produced.
Among many optical properties, contrast and flare control under adverse shooting conditions are of critical importance, at least to me and many. Expectations are high based on Sigma’s description:
One FLD glass and five SLD glass elements are appropriately arranged to suppress chromatic aberration to the edge of the frame...
The super multi-layer coating is combined with a newly developed NPC (Nano Porous Coating)*. The lens has been designed to be less susceptible to strong incident light such as backlight.
Accordingly, I checked out several shooting situations to see how the Sigma 14-24mm F/2.8 DG DN Art deals with adverse lighting at 14mm, 18mm, 24mm. Most examples shown both wide open and stopped down.
Includes images up to full camera resolution.