This data set was acquired with a Digital Camera on the ROV SuBastian Scientific Computer System (SCS) during R/V Falkor expedition FK190211 conducted in 2019 (Chief Scientist: Dr. Samantha Joye). These data files are of JPEG Image format and include photograph data that have not been processed. Data were acquired as part of the collaborative research: Microbial carbon cycling and its interactions with sulfur and nitrogen transformations in Guaymas Basin hydrothermal sediments. Ship time was provided by Schmidt Ocean Institute and funding was provided by NSF Award: OCE13-57360.