Overview

The 7Artisans AF 40mm F2.5 is a compact, budget full-frame lens for Sony E-mount, weighing ~90g and priced at $159. It offers strong central sharpness wide open, becoming bitingly sharp by f/4, but corners lag until f/5.6. Weaknesses include significant flare and contrast loss when shooting into light, noticeable focus breathing, and modest autofocus speed. Build is plastic with a metal mount and weather-sealing gasket. It suits street, travel, and general photography where size and value are priorities, but not demanding action or flare-prone scenes.