the definition of patent infringement is that the patent is implemented for the purpose of production and operation, and it is used to take pictures of your own goods. In fact, it is already for the purpose of operation, so this behavior constitutes infringement.
The latter question depends on the content of the patent. If you just take apart the parts of the soft light studio that are used to make patented products and sell them, it is not infringing unless there is a corresponding patent for the corresponding parts.