Are you ready to get off Auto? When most people get started in digital photography, the first thing they do is set the shooting mode dial on the top of the camera to Auto. It makes sense to let the camera make decisions about things while you’re just getting used to using it.
In Auto mode, the camera makes decisions not only on the Aperture, Shutter Speed, and ISO but also on many other factors such as White Balance, Focus Mode, Focus Points and Metering Mode.
After awhile, you might start to choose one of the automatic scene modes such as portrait, sports, landscape or night, if your camera has those options. This gives the camera a bit more information about what you’re shooting so it can make better decisions for you.
But at some point, you are going to want to take control and make those decisions for yourself. Your camera is smart, but it’s not an artist! This is where the advanced shooting modes come in.
https://digital-photography-school.com/advanced-shooting-modes-what-when-how/