A fun celebration of CEBF in Puerto Rico with Fundación Ecológica Educativa, Inc. Kids with masks-CEBF 2018-Fundación Ecológica Educativa, Inc. Technical Details Camera: LG-H820PR Taken: June 2, 2018 Focal length: 4mm Aperture: f/1 Exposure: 1/60 second ISO: 50