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You misunderstood because I took it for granted the reader would automatically understand that a 30mm eyepiece would display a bright background and a lot of light pollution. My comment about the 30mm was not about the Apollo 11, which has an 11mm focal length, but merely that the night was so dark and transparent a 30mm eyepiece (not the Apollo 11) displayed incredible contrast and a dark background sky.
Sorry for not being clearer.
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