Especially in Sports / Basketball. 1. I'm already at high ISO if it's indoors and the correct exposure for black people's skin is pretty dark (ESP if they're a dark chocolate nugga straight out of Africa) so there's more noise in their skin. 2. They're darker and reflect less light so they're harder to focus on. 3. I can sometimes see purple fringing around their eyes against their dark skin. 4. They move so fast I have trouble tracking them. Please have a sense of humor. All of these points are actually based off difficulties I've had with indoor volleyball and basketball.