• All competitors should observe the BSoUP and Marine Conservation Society Photographer’s Code of Conduct. The judges will disqualify any images which in their opinion have been created as a result of handling, placing or interfering with wildlife.
  • Only 2 images can be entered, but competitors can use 1 open category and/or 1 restricted category camera, with any number of lenses during or between dives, and multiple memory cards.
  • All images must be taken under water or part underwater during the 24hr time window of the competition. Images can be taken in any salt or fresh water natural environment. Images from swimming pools, aquariums or anything that contains captive flora or fauna are not eligible.
  • Remote control photography (e.g. pole cams) is permitted.
  • The benefits of allowing remote submission of images needs an element of trust. Personal integrity and respect for other competitors is expected. No system of electronic validation is entirely secure, but reasonable measures will be taken to assure the validity of entries.
  • Competitors should abide by the spirit of the competition, which is to demonstrate in a time-limited window the underwater photography skills required to make images that capture the essence of British and Irish underwater scenes.
  • There is no limit (other than those imposed by sensible diving practices) to the number of dives that a competitor may make within the 24hr window, provided that they make the image submission deadline.
  • All automatic and manual in-camera processing is allowed. However, in-camera processing (i.e. changes made post image capture) should be consistent with the spirit of the competition; it should restore the image to what was observed underwater at shutter release, or combine multiple images in an artistically-sympathetic way.

    Out-of-camera processing is permitted to the following extent:

  • Cropping to improve composition.
  • Global (whole image) adjustments that are judged to restore the colour and contrast observed at image capture are allowed and encouraged. This includes colour balance, exposure, contrast, tone, highlights and shadows, clarity, noise, vibrance, saturation and lens distortion corrections (including lens vignette corrections) or any similar global adjustment provided by any software package.
  • Local adjustments that change specific parts of an image are not permitted, for example any type of cloning, including back-scatter removal, partial image blurring or artificial vignettes.