I am finishing up my latest book, Photographer’s Guide to the Sony DSC-RX10 III, which should be published by the end of July. In writing that book, I came across a new (to me) menu option on the Custom menu, called Video Light Mode. I found that, using that option, you can control a compatible video light using the controls of the RX10 III camera. The only compatible model listed in Sony’s documentation is the HVL-LBPC, so I purchased that light and checked it out. It works as advertised, and I have made a five-minute video that demonstrates the use of that light with the RX10 III camera. Here is the video: