7Artisans AF 40mm F2.5 LITE (Nikon Z)

Testing (of the Sony version) found it good across the frame from f/2.5, with slight softness from spherical aberration. Field curvature and focus shift around f/4–f/5.6 mean refocusing is needed for the best corners. Landscapes look best at f/8–f/11. Distortion is low and lateral CA is modest. Bokeh is smooth for such a small lens.

Flare is the clear weakness, with ring flares and large ghosts that stopping down does not fully cure. Vignetting is about 2.8 EV wide open, and autofocus is adequate but neither fast nor quiet. Nikon's Z 40mm f/2 is a little faster and better established on Z bodies, while the 7Artisans offers more physical controls for less money.

Early Z-mount buyers like the tiny size, low price and full set of controls, which make it a natural body-cap lens for travel and street work, especially on the retro-styled Zf and Zfc-sized bodies. Portability is the most consistently praised aspect.

Owner feedback on AF accuracy is mixed, with some reports of hunting, and the AF/MF switch works in the opposite direction to most lenses. Owners should check 7Artisans' compatibility list and keep the firmware current over USB-C. Owner feedback on the Z version is still limited because it has only been on sale since August 2026.