Which Lens for wildlife? 400 or 600 Prime?
I have finally saved up enough money to purchase my first big prime lens. I am stuck between a Sony 400 f2.8 or the Sony 600 f4. I would like the best all-around lens, which I feel the 400 would be, but I'm not sure about wanting to use teleconverters to get the reach the 600 has with losing a stop of light. I don't want to regret not having the reach a 600 has.
Does anyone have any experience with either or any recommendations? Can you still easily fill a frame with the 400 rather than the 600? I have trips planned to Antarctica and Africa. Thanks for the help everyone!