This is a very specific request, but I haven't found anything on the Googles or forums, so hoping someone here can help out!
I'm doing an engagement session for a couple in San Francisco City Hall, and a lot of the research I've done suggests that off-camera flash will help tremendously to get the results I have in mind. Searching through the official rules at FILM & PHOTO | San Francisco City Hall Events it lists two main criteria for flash:
1. Lighting equipment must be battery-operated.
2. Do not use flash equipment that will cause a significant visual disturbance.
Number 1, check. No issues with my Yongnuo speedlight.
Number 2... what the heck defines a "significant visual disturbance?" A bare flash going off for a cool backlight effect? A flash with an attached modifier like a MagMod/GaryFong/Rogue Flashbender? A flash on a stand with a shoot-through umbrella? A certain level of flash power? That pretty much covers the scenarios for my current gear...
I'd really appreciate any advice from someone who has shot with flash indoors at SF City Hall and can tell me roughly what their equipment/setup was, and if they ever ran into issues with causing a "significant visual disturbance" in the process. Not looking to steal anyone's ideas or "what were your settings" type questions, just general pointers would be greatly appreciated.
Thanks!