The first step was filmed by a camera that was mounted on the LEM, but then again, you were probably in diapers then and it was past your bed time.
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After that he set up the video camera and used his camera to photograph Aldrin getting off the LEM and the 2 of them planted the flag which had a horizontal bar on it to make if "fly."
BTW, my neighbor who worked on the LEM at Grumman had a model of it and he showed me how that camera was deployed after landing.
Even if you believe it was filmed, it was probably done by Stanley Kubrick...
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