Reuters photographer Dylan Martinez used a huge Zoom-Nikkor 1200-1700mm f/5.6-8P IF-ED super-telephoto lens to take photos of Pope Francis from ground level on Saint Peter’s Square. This is a rare but not exactly new manual-focus lens - in fact it was first used at a Japanese tournament held in March 1990. The large (888mm long), expensive and unwieldy (16kg) lens isn’t often seen out in the wild but when you do see one in person you won’t mistake it for anything else. Italian newspaper La Stampa published a couple of pictures of Martinez working the monster lens on 12 March 2013 here. The pictures he took with the rare super-telephoto zoom appeared on the Reuters blog as well as in publications worldwide.