Five minutes into my first dive in the Banda Sea, I came face-to-face with a scalloped hammerhead shark, gliding effortlessly in its underwater realm as it emerged from the depths to investigate the alien visitors descending from above. A second hammerhead swam past a moment later but was less bold in its approach and quickly disappeared back into the abyss.

It should not happen but sometimes it does anyway: those annoying little white dots in our underwater images, which detract from the overall impression of the photograph. Known as backscatter, these dots appear when small particles in the water reflect the light from a strobe. The more directly the strobe light hits a subject, the higher the risk of backscatter. That is why a strobe should not be pointed straight at a subject.

Year 2020. The coronavirus pandemic has confronted the world with an unprecedented situation. Many countries went into lockdown, and as a result, many people were forced to stay indoors, including myself in Japan. Although Japan never went into an official “lockdown”—it instead went into a so-called state of emergency—I could not wait to get out of the Tokyo metropolis as soon as restrictions were lifted.