Wildlife photographers often use wide apertures like f/2.8 to create background blur, but the shot that just won one of the most prestigious underwater photography competitions was shot at f/16. A photograph of two baby seals learning to swim has beaten nearly 8,000 images in the Underwater Photographer of the Year.
The colors of the sunset were about to fade when photographer Matty Smith grabbed a camera and rushed into the water where two elephant seal pups were learning how to swim. Donning a wetsuit and grabbing a wide-angle lens, Smith captured the play between two baby seals half underwater and half above.
