How do small studios photograph cultural relics (porcelain, wood carvings, Buddha statues, etc.)? How to place the projection lights? What parameters do SLR cameras use? See the picture!

I can tell at a glance that you are professional and non-professional. I suggest going to the library to read relevant books, and then going to the forum to ask more professionals, so that I can meet experts in the surrounding communities myself.

Your light is on the background, of course, the background can't be pure black. For example, if you look at a place where there is no light at night, whether it is dark or not, if there is light, you can see the objects next to the light again. If you turn off the light, it will get dark again. So, if you want the background to be pure black, don't let the light enter the background.

Another method is to subtract blue or green to distinguish the color background of the subject, so that it can be changed to black background after later computer processing.

How to place the projection lights? Do you need a lamp at the top, too? How to choose the camera placement angle? What mode and parameters (AV, T, Auto, Macro) do SLR cameras use? Is the camera lens short focal length or long focal length?

These questions are only based on the final effect. Specifically, it is not clear in one or two sentences.

I wish you success!