Sirui Aurora 35mm F1.4

Reviewers found the centre very sharp from f/1.4 and excellent by f/2, with corners that start soft and darker but reach very good to excellent levels at f/4. Coma and lateral colour are low, and bokeh is smooth with little outlining, which several called the lens's main strength. Vignetting is heavy, about 2.4 to 2.5 EV wide open.

The common criticisms are a slow, deliberate STM autofocus that suits still subjects better than action, noticeable focus breathing, mild pincushion distortion with no built-in profile, and some axial fringing at f/1.4. Flare resistance is average. Against premium 35mm f/1.4 lenses it is less polished, but reviewers rated it strong value at its price.

Early owners like the solid metal build, the smooth damped focus ring, and how much control the lens gives for the money. Its character wide open, with soft transitions and good colour, appeals to people who find modern 35s too clinical.

The main complaint is autofocus speed, especially when tracking moving people, and some owners hope later firmware will help. Strong corner vignetting at f/1.4 and the lack of automatic distortion correction mean more post-processing.