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.

Probably no real advantage unless you really need the speed, but shooting wide open even in a 230mm dome is going to produce pretty horrible corners. Then there's the question about whether it plays well behind a dome and also if it will work behind a WACP-2, probably more likely to work on this optic than the WACP-1, the large front element can be the issue for these optics. The WACP-2 might be a chance as it works with the Sony 14mm f1.8.