Apollo Discussions > The Reality of Apollo

Apollo rover TV camera question...

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Quick question....
How was the exposure controlled on the camera, was it automatic or controlled from earth?

Not 100% sure, but according to:
it did have an ALC (Automatic Light Control) function with both peak and averaging functions, and it appears to have been remotely operable.

I'm pretty sure I saw the exposure level being manually changed, so i wasn't just an automatic gain control.

Yep it had both. There was a built in ALC (and the camera was rugggedly tested by pointing it at the sun) and Ed Fendell could control it from the ground.

Tested by pointing at the sun? What changes were made to make that possible?

I was reminded of Apollo 12 almost every time I saw one of those videos taken from a shuttle SRB. They frequently captured the sun but weren't bothered at all.


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