Aperture priority keeps your aperture fixed and changes your shutter speed. This is great for those who want to have the same depth of field in their pictures. Shutter priority keeps your shutter speed fixed and changes everything else. This is ideal for action photography.

Do wedding photographers use aperture priority?

For wedding couples portrait photography, you'll need an aperture somewhere between f/1.4 and f/2.8. ... Keep in mind that Aperture Priority Mode is trickier to shoot in at weddings, because shutter speed is so important in capturing quick actions like dancing.

What is shutter priority mode used for?

Shutter priority (usually denoted as S on the mode dial), also called time value (abbreviated as Tv), refers to a setting on some cameras that allows the user to choose a specific shutter speed while the camera adjusts the aperture to ensure correct exposure.