SUMMARY
After a month of real-world use on Sony a7R V and a7 V bodies, the Sigma 35mm f/1.4 DG DN Art lens is praised for its exceptional sharpness, even in the corners by f/2.8, and excellent flare and chromatic aberration control. The lens features a polycarbonate construction, de-clickable aperture ring, iris lock, and custom function buttons. For video, its minimal focus breathing makes it a preferred choice over the Sony FE 35mm f/1.4 GM for studio work. However, the reviewer grapples with the Sigma's technical perfection versus the Viltrox 35mm f/1.2 AF's more desirable rendering, despite the Viltrox's heavier weight.
TAKEAWAYS
Sigma 35mm f/1.4 DG DN Art offers corner-to-corner sharpness by f/2.8 and superior flare control.
The lens features a de-clickable aperture ring, iris lock, and custom function buttons.
Its minimal focus breathing is advantageous for video, outperforming the Sony G Master in some scenarios.
Reviewer notes a tension between the Sigma's technical excellence and the Viltrox's superior image character.