REVIEW Mario has a thorough understanding of modern camera systems and their use underwater; he is ideally placed to advise photographers on equipment that may initially seem complex. His own photography is grounded in a comprehensive knowledge of the principles that underpin light in the sea, which he presents in a series of informal talks that will prove useful to anyone with an underwater camera. His knowledge of Red Sea reefs in particular gives workshop participants a fuller insight into the layers of life and colour awaiting them. After years of guiding divers, he has a love for the sea evident in his own photography, and the way he communicates this passion to his guests.
Simon Rogerson, Editor, SCUBA magazine