honestly so fed up with my Lumix 50mm S Pro lately like the focus breathing is just killing my video work and for the price I paid I expected way better.

so I was thinking about selling it and grabbing the Sigma 50mm Art instead because my logic was that Sigma is half the price and everyone says the sharpness is identical anyway. I have a wedding shoot in Chicago next month and I need a reliable prime that wont hunt in low light. is the autofocus on the Art series actually fast enough for pro events or am I just gonna regret ditching the native glass? I'm stuck between sticking with what I have and trying to save cash for a second body...