Canon says that its recently unveiled CINE-SERVO 50–1000mm T5.0–8.9 Ultra-Telephoto Zoom lens is the world’s longest 4K ultra-telephoto zoom lens for large-format single-sensor cameras—and, notes PetaPixel, it comes with a price tag as impressive as its long focal range: $78,000. The lens is designed specifically for use with Canon’s EOS …