I’m a wedding photographer. Every good photographer (almost) always bounces their speed light off the wall/ceiling or uses an off camera flash. I’ve taken hund

I’m a wedding photographer. Every good photographer (almost) always bounces their speed light off the wall/ceiling or uses an off camera flash. I’ve taken hundreds of thousands of wedding images and never once had red eye to remove. People also don’t “startle” faster than the speed of light. Speedlights aren’t “big honking flashes” and as long as you know what you’re doing you’re still usually at a high ISO as you don’t want the background to be super dim compared to the foreground. Anyways, phones are especially ill suited for that environment compared to modern cameras. At f/1.4, 1/200th of a second shutter at ISO 6400 you can freeze everything but super fast motion with pretty good image quality in very dim environments. Phones absolutely cannot do that. Even pictures taken outside just after the sun sets are a smeary mess after the built in noise reduction.