DX or FX?Which sensor size is better for underwater photography? by Borut Furlan "I was convinced from the very beginning (since my transition from film to digital technology in 2006) that the DX (small) format is more suitable for underwater photography than the FX format. I have debated this time and again with my colleagues and tried to prove it (more or less unsuccessfully) on the basis of theoretical facts. Then I finally came to a decision to attempt to prove my claims with a practical test (or maybe realise that I was mistaken …). After all, my old D2x has by now become really obsolete and the results of this test will strongly influence my decision about its successor."