How to set aperture and shutter in wedding photography

Aperture priority mode should be used,

Just set the mode dial on the camera to AV mode.

Then manually set an aperture value, and the camera will automatically set the appropriate shutter speed according to the given aperture value.

You can use full manual mode M gear outdoors. Don't set the aperture too large, and the shutter speed is moderate. If it is too slow, the picture will be empty.