On May 5, 2020, Viktor Lyagushkin gave an open lecture on Zoom. He told his listeners how to take pictures in caves. The master shared with us the secrets of photo shooting in complete darkness: how many and what kind of light sources are needed, how to choose the location of shooting, how to devide fore- and backgrounds, what kind of light sources are needed in which situations, and so on, so forth.

The lecture is available on YouTube on the link here.