This Telescope Uses 10 Canon Lenses Worth $100,000

Now here’s a neat use of Canon’s lenses: the University of Toronto owns one of the smallest professional astronomical telescopes in the world that uses an array of photographic camera lenses instead of a single lens. Called the Dragonfly Telephoto Array, it uses ten ordinary Canon 400mm f/2.8L IS II lenses that cost $9,999 each. […]