I don’t have this super telelens but have to do with what I’ve got. For picturing whales you need at least a 500 mm lens like those super Canon canon or Sony’s (even more expensive) equivalent of that. And I’m not one of those tourists that pay a fortune to go on a whale/shark watching boat. So I stay aside somewhere at a spot where locals do their whale watching.
Anyway here is my attempt with a simple 300 mm sigma lens and severely scaled (to 1200 mm) in DxO and/or Photoshop. Had to ‘cover-up’ here and there for loss of detail, etc. 😉