You asked

Is the sigma 35mm f 1 2 dg ii art good for street photography?

Here is what the site says about that.

From Sigma 35mm f/1.2 DG II Art: Sigma 35mm f/1.2 DG II Art: A prime lens by Sigma for Full frame cameras, 35mm f/1.2. The 2025 successor to the 35mm f/1.2 DG DN, much smaller and lighter. Specs - Maker: Sigma - Focal length: 35mm (prime) - Maximum aperture: f/1.2 - Made for: Full frame sensors - Mounts: Sony E, L-Mount - Stabilised: no - Autofocus: yes What it frames like - On full frame (Sony E, L-Mount): as marked, 35mm. - On ...

From Sigma 35mm f/1.4 DG II Art: Sigma 35mm f/1.4 DG II Art: A prime lens by Sigma for Full frame cameras, 35mm f/1.4. The 2026 redesign of Sigma's 35mm f/1.4 for mirrorless, following the 35mm f/1.4 DG DN.

Quoted from this site's pages.

From these pages