These examples with the Sigma 14-24mm f/2.8 DG DN Art taken in the Eastern Sierra in the Pine Creek area on the 60-megapixel Sony A7R IV. Some are focus stacked images showing off the incredible detail possible on 60MP, and some also versions upscaled using Gigapixel AI.
Even with a sample of the Sigma 14-24mm f/2.8 DG DN Art which is clearly not performing as designed at f/2.8 and f/4 over much of its zoom range, stopping down results in spectacular results, and I am not using that word lightly—it might be the best prime and zoom lens available today in that range.
Who needs medium format? With ultra-high lens performance, focus stacking and Topaz Labs Gigapixel AI (and Topaz Labs Sharpen AI), I am seeing some pretty incredible results. I consider my print size limit to be about two meters wide and so I begin to seriously doubt if more than the Sony A7R IV is needed for that (assuming good samples of top flight lenses)—especially when pixel shift and/or frame averaging can be used. But in just about all cases focus stacking is a hard requirement—master focus stacking for landscape shooting, or you’re just playing around.
I am using the combination of the Sigma 14-24mm f/2.8 DG DN Art and Sigma 35mm f/1.2 DG DN Art and loving them in the f/5.6 - f/8 range—a spectacular two-lens combo that along with the Voigtlander 65mm f/2 Macro APO-Lanthar makes a world-class 3-lens kit for landscape—maybe the best ever. Now if only I can locate prime samples of the two Sigma lenses (the Voigtlander 65/2 is so spectacular an ideal sample that I am going to keep it, no need to search for a better sample).