Red-Eyed Tree Frog, Costa RicaI did a lot of shooting of nocturnal creatures without using flash, on our recent Costa Rica trip. For this image, I used a spare headlamp that I hung on a branch behind the frog so that the primary light was coming from over the frog’s left shoulder. Nikon Z8 with Nikkor 500mm PF lens, ISO 3200, f/5.6 at 1/80th of a second.