Please ask the master for advice; Which one should Taobao SLR camera be adjusted to be the clearest? How many lights should be adjusted directly?

There is no clearest document. Taobao photos generally use studio lights or constant light. In this case, when the aperture is generally adjusted above F8, the photo is clear enough, but pay attention to the shutter speed. If the photo is too dark, try to slow down the shutter speed by 2 steps. If you use studio lights, "shutter 1/200, aperture F8~F 1 1" will do. If it is a constant light, it depends on how many lamp holders you use. Again, if the photo is dark, try lowering the shutter by 1~2, and then lower it if it is still dark.