If you need to shoot across longer distances–like a school auditorium, for example—consider adding an external flash to extend your range to 30, 40, or even 50 feet.

Start with learning fill flash, then dive into learning manual flash, off-camera flash, and flash on location. For a really deep dive, The Flash Photography Book by Scott Kelby is an excellent ...

Using a remote trigger will enable you to fire one flash, to act at the 'master', which in turn will fire the second 'slave' flash unit at the same time. Learn more: Flash photography made easy 14.