Complex sentence: During this time, she continued portrait photography at her studio, while also embarking upon an experimental type of photographic work that artist Leo Katz later named photogenics: abstract black-and-white images produced by moving torches and candles over light-sensitive paper.
Split into simpler sentences: During this time, she continued portrait photography at her studio, while also embarking upon an experimental type of photographic work that artist Leo Katz later named photogenics. They refer to the abstract black-and-white images that she produced by moving torches and candles over light-sensitive paper.