6D on a 2000mm f/10 telescope with 2xTC. Seas of Tranquility and Serenity, crater Plato and the nearby Alpine Valley, craters Archimedes and Eratosthenes, crater Copernicus at sunrise. ISO320, 1/25.
Larger view - macro extenders (total 65mm) added between 2xTC and camera body to increase the effective focal length. ISO640, 1/80.
Taken evening of 8 February, first decent night in two weeks.