albedo is not the single quantitative embodiment of illuminational capability.

That is certainly turning out to be the case. I was hoping that if albedo was constant enough at a given landing sight, we might be able to roughly calculate the amount of illumination from the ground. For example, is there enough illumination from the ground to expose Aldrin's shadow side to the extent we see in the famous photo? Some of the illuminated ground in the Aldrin photo looks fully exposed. 7% albedo is about 4 stops under 100%. That's well up on the characteristic curve for (at least modern) Ektachrome film, so we should expect to see Aldrin's shadow side exposed as well as it is. (The exposure of the top of his helmet and backpack is much less though, as would be expected.)

Of course, I am beginning to realize that lunar albedo is too complicated an issue to nail down analytically. But I wondered if rough calculations might help convince people that the exposure levels are not anomalous.