Could this be the Biggest Lens Ever?

Say hello to Nikkor 1200-1700mm lens! Can you imagine such a massive lens?! And you thought, Sigma 120-500mm was a monster, didn’t you?  😉 The spec of the lens: Nikkor 1200-1700mm f/5.6-8.0, lens construction – 18 elements in 13 groups, aperture scale – F5.6 – F22, weight – ca.20kg, length – ca. 1m. As far