Who doesn't know the Magic Filters? Dr. Alex Mustard and Peter Rowlands developed these filters for underwaterphotography without the use of external strobes. They promise pictures with fantastic colours and a lot of creative shots. In the past they produced a DVD where Dr. Alex Mustard shows the use of these filters. It is a great How-To for beginners and experts because you will see how to use all the benefits of the Magic Filters. The DVD costs 15 Euro and is available through the Magic Filters Website.