In Focus

Red Tide in Carlsbad, California

Red Tide in Carlsbad, California. Photo: Gilley
Red Tide in Carlsbad, California. Photo: Gilley

Photographer: Rob Gilley

Subject: Red Tide

Location: Carlsbad, California

Specs: Canon 5D Mark II; 28mm 2.8; Approx. 5-minute exposure

Comments: “It wasn’t until the late 2000s introduction of ultra-low light sensors that a phenomenon like Red Tide could properly be captured. Previous issues with reciprocity failure and long exposure motion faded away, and allowed for new possibilities.”