This is what the whole 800mm gets me out of the RF 200-800.
To the astonishment of people who have never tried to take a picture straight at the moon before, this is only a 1/800 sec exposure at ISO-100. The normal rules about nighttime sky photography don't apply for the moon on a clear night, because it's lit by direct sunlight.
For a normal moon that is true, but just the other day there was a lunar eclipse and i almost couldn't see it by naked eye! It was also moving quite fast in the sky, so i had to compromise with a 1s exposure at 3200 ISO. Earth's shadow was also slowly moving away so each minute the contrast between the lightened and darkened parts of the moon was increasing. I used a 300mm, the longest i got. There was also a lot of light pollution, i think that's why the sky appears so bright in the image, while in reality it was quite dark.
Is that what was going on? I noticed a blood moon-eqsue effect the other night but I figured it was just due to it rising through wildfire smoke or whatever, as usual.