Aloha, My name is Terry and I am an underwater photographer based in Hawaii. I am interested in the Canonn RF 14 1.4 for shooting sharks, people, whales, and orcas. The lowlight capes would be good for Norway for orcas I would assume. I am not sure what extension would be needed for a 230mm dome or a wacp-2 but if anyone has tested it or any insight I'm open to hear. I have one available near me so just debating if it's gonna be better then my 14-35 f4 or my 15-35 2.8.