From the photo, it is actually very clear, but because the depth of field is too shallow, objects that are not in a focal plane will be hollow (such as the diamond in the middle).

In fact, solving this problem is very simple. This kind of tent shooting must use manual gear (M gear). The idea of manually adjusting the three parameters (shutter, aperture and ISO) is as follows:

Shutter is optional (because the main body will not move, tripod is also used), which is subject to the synchronization value.

The aperture should be as small as possible. In order to maximize the clear range, a small aperture of f116 is generally adopted, but it is not recommended to be smaller than F 16, because too small an aperture will affect the image quality and weaken the sharpness.

ISO is the minimum requirement to ensure fine image quality.

By adjusting the above ideas and balancing the illumination by moving the illumination distance, you can get all clear and delicate photos.

In other words, the problem in the above picture is that the aperture is not small enough and the depth of field is not deep enough. Just take a picture of it.