Celestron echelon binoculars 20x70 are expected to perform well in low light conditions observations during twilight and at night require larger optics to collect as much light as possible but big lenses alone are not enough to ensure a superior viewing experience it also takes quality glass and rugged construction to keep your binoculars safe and working well for years to come the large aperture echelon series of binoculars are designed for use in low light conditions whether you are