Lighting, composition, compression, exposure – all part of the tool kit for any photographer.  The moon is one of the hardest things to photograph properly.  Never had a camera that could expose the moon properly – the contrast between the bright moon and the dark sky always causes an over exposure.  The moon is really bright and you have to adjust the exposure downward much more than you would expect!

Canon 5d MkIII | Canon 70-200 f/2.8 + 2x teleconverter | 400mm | 1/200s at f/5.6