Provided is a method of carrying out an underwater video survey of a scene, the method operating in an underwater imaging system comprising a first camera module, a second camera module and a lighting module to provide a plurality of illumination profiles, wherein the method comprises repeating the following steps at a desired frame rate: the first camera module capturing a first image of the scene, where the scene is illuminated according to a first illumination profile； and the second camera module capturing a second image of the scene, where the scene is illuminated according to a second illumination profile； characterised in that the first camera module is a HD colour camera module and the first illumination profile provides white light suitable for capturing a HD image； and the second camera module is a low light camera module, and the second illumination profile is suitable for use with the low light camera module.
