The above photo was taken by Atif Saeed. He is an incredible photographer with a large following on 500px. He used a Nikon D4 and a focal length of 500mm for the above shot so I expect that he was a relatively safe distance from his subject. You can see his full frame here.
His image was among the top ten most popular photos on 500px. And rightly so. An amazing frame.
Number 1, not surprisingly I suppose, is my favourite on the list.
You can check them out here.