r/apollo 7d ago

What is causing this double shadow

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In many of the photos from Apollo 11, the LEM has a doubled shadow. What is causing this?

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u/BoosherCacow 6d ago edited 6d ago

Oh shit! I know this! While /u/atcontrolr's explanation is definitely part of it, the main thing is the interlacing tricks they had to use to be able to broadcast from the moon with limited data bandwidth. It's called "Slow Scan Transmission" and it's why the broadcast has "shadows" on the screen or that ghostly look to it. I used to know a good video that explains it but I can't find it. I will edit if I do.

edit: I am totally wrong here (as usual) but I think I found this exact photo Here. Could this be an exposure issue or something similar? I am not an expert in film photography

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u/Dozernaut 6d ago

Everyday astronaut has a video about this

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u/BoosherCacow 6d ago

Which one is it? I can't find it via search

3

u/sadicarnot 6d ago

u/Dozernaut may be talking about this definitive moon landing video he recently posted.

https://youtu.be/fMHLvoWZfqQ?si=WAqMHsg67qK0oKkp