Viltrox AF 9mm f/2.8 Z Air DX Review

The Viltrox AF 9mm f/2.8 Z Air DX is a budget ultrawide autofocus lens designed for Nikon Z mount APS-C cameras. At 9mm (roughly 13.5mm full-frame equivalent), it delivers an extreme field of view suited to landscape, architecture, and interior work where space is tight and dramatic perspective is the goal. The f/2.8 aperture is reasonably fast for an ultrawide at this price, and the inclusion of autofocus is a practical advantage over many manual ultrawide primes in this segment.

At $199, the lens undercuts first-party and many third-party ultrawides by a significant margin, positioning it as an accessible entry point for Z DX shooters who want to explore ultrawide focal lengths without breaking the bank. Viltrox has built a reputation for delivering usable optics at aggressive prices, and the "Air" designation suggests a lighter build. The lens fills a gap in Nikon's Z DX lineup, where native ultrawide options remain limited.