Small white photography: how to use aperture priority on SLR?

First of all, we should use aperture, first of all, we should understand the meaning of aperture.

A large aperture means the depth of the scene, and a small aperture means a larger clear range and a more ideal picture effect.

Using aperture priority mode, other parameters can be handed over to the SLR control system to take ideal photos freely.

SLR users' cameras are often hung in almost half of the aperture priority files, and the other half are mostly familiar with this mode.