What documents do wedding photographers usually use for location shooting? M {Manual} or A {Aperture Priority}, which is used more?

M, of course. There's no need to ask. When shooting, we use spot metering mode, and there will be a cursor below the shooting frame to prompt overexposure or underexposure, which can be adjusted accordingly.

In fact, the most important thing is experience. If you shoot too much, you will naturally know how much exposure is used when iso and aperture are put into a certain value in your environment. At first, you will waste some shutters and accumulate experience! !