5000mm · f/15
The Canon TV 5200mm f/14 is an extremely rare, massive lens weighing ~220 lbs (100 kg) with a minimum focus of 120m. It can capture objects 18–32 miles away, offering 100x magnification over a 50mm lens. Optical strengths include extreme reach for astrophotography, but its f/14 aperture and built-in ND filters limit low-light use. Build is impractical for travel, requiring heavy support. It suits specialized collectors or space photographers, with only three known units.