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[James Fincannon]

But I would take issue with you on one point. At Apollo 15 you say there is no clear evidence of a flag shadow, and that is true in the first frames, but not in the last three where a very dark shadow appears and moves as expected. Maybe the orientation of the flag is such that the early frames are casting a very thin shadow (i.e. the sun is in the plane of the flag in the mid-morning).

Thanks, Phil.

Yes, I, of course, noticed those frames too during my work on this. My original assessment was that more work was needed (since it was not so clear cut as the three I was sure about) and I couldn't understand the shadows being shown without more modeling/analysis. Eric Jones and I went back and forth about this a lot. If someone in the audience wants to offer a model (i.e. 3D) for the shadow casting for these frames, then we would welcome it. It is baffling. You idea might work but I have not had the time to test it and other theories.

[charborob]

Spectacular oblique view of Tycho crater has been posted here. Must see!

[jasedm]

Beautiful desolation!