Overview

The 7Artisans 15mm f/4 is a manual-focus ultra-wide lens for full-frame mirrorless cameras, priced at $359. Optically, it shows even performance across the frame at f/4, with corners improving when stopped down; peak sharpness is reached by f/11. Vignetting at f/4 is nearly one stop higher than the competing NiSi 15mm f/4, but similar by f/8. A slight green color cast may appear in corners with snowy or overcast scenes. Build quality feels solid with metal parts and engraved markings. The lack of autofocus is rarely an issue for ultra-wide use. It suits landscape and architecture photographers seeking an affordable, compact ultra-wide.