Aquarium shots have always been a challange for me. On my vacaton to Atlantis in the Bahamas, while everyone was enjoying the sun, I spent hours experimenting with shutter speed and f-stops to get the correct exposure. With the Nikon Martrix metering I used a shutter speed of 1/90 and my aperture at f-5, the focal length happened to be 28mm. I worked on all types of fish and the hardest to capture in low light was the jelly fish.
Uploaded on September 19, 2006