>>3993222>he still thinks it's the motor>he actually believes there are DSLR and mirrorless motorsThe Sony+Sigma wasn't slow to lock in low light, it FAILED to lock at all. That's NOT the motor's fault. The motor is just doing what the camera body asks. It's the camera body that failed.
The Sigma was just as fast in daylight in the beginning of the video, which you are purposely ignoring because it shatters your theory.