Anthony O'Connor's stunning underwater shot of a diver is certainly one that most photographers won't ever get a chance to take. Some would say it's hard enough to take a good shot whilst on terra firma not to mention underwater where staying alive might be the top priority! Anthony tells the story of how it came about:

"I took the image in August 2003 on a dive at the Bills Rock. The rock is located approximately 8 miles west of Achill Island and is regarded as one of the best dive sites on the Irish coast. It rises 40 metres above the water and below the water there is a vertical wall down to a depth of 50 metres, which is covered in marine life".

"The image was taken on the ascent at a depth of about 10 metres in natural light".

"The original shot was in colour but was very green. This is because colours are lost from the spectrum as you descend in water, i.e. red, orange and yellow all disappear beyond about 10 metres below the surface. Flash isn’t really an option unless the shot is close up or in crystal clear water, as flash light is reflected off suspended particles in the water causing specks in the image, known as backscatter".

"I converted the image to black & white, adjusted the sharpness and contrast slightly and cropped it so that the anchor line was in the corner of the frame".

Technical Details:
Camera: Canon Powershot A20 in a waterproof housing
Aperture: 2.8
Shutter Speed: 1/60

See more of Anthony's images here.