Get Sigma 14-24mm f/2.8 DG HSM Art at B&H Photo.
This series is about the overall visual impact first, sharpness second. It also discusses and shows field curvature particularly well.
Includes up to full resolution images from f/2.8 through f/13, plus a black and white rendition at f/2.8.
This series and others are important to understanding how to get the best out of the Sigma 14-24mm f/2.8 DG HSM Art, just as my review coverage of the Sigma 12-24mm f/4 DG HSM Art was and is. A lens can be bought and used, but unless its behavior is understood, sub-optimal results are virtually guaranteed on 36/42/45/50 megapixels even with the best lenses. That is one goal I strive for in my reviews, which aim for practical working knowledge.
Toggle for black and white version.