Red Eyed Tree Frog, Tortuguero National Park, Costa RicaA red-eyed tree frog gets ready for a night of croaking in Tortuguero National Park in Costa Rica. Nikon D200 with Nikkor 70-200mm lens (at 200mm with Canon 500D close up filter) ISO 400,f/20 at 1/60th of a second, two Nikon SB-600 flash units.