The Hubble Telescope has produced some of the most incredible images, but that should come at no surprise. Look at the typical focal lengths of super telephoto lenses. Typically you'll see a lot of affordable options go up to 200mm, several up to 400mm, and only a handful going from 600mm+. The Hubble Telescope, on the other hand, has a focal length of 57,600mm at f/24... That is just incredible.
According to space.com, The telescope is 43.5 feet long, weighs 24,500 pounds (11,110 kilograms) and cost $2.5 billion. Hubble's six cameras and sensors see visible, infrared and ultraviolet light.