This photo has been bothering me for quite a while, so I decided to look into it further. It is shown in Wikipedia's Opposition Surge article, which is a fascinating topic that I'd like to avoid here if possible. Currently the article includes the first photo shown below, a sepia-toned photo of Neil Armstrong, taken by Neil Armstrong, with, apparently, opposition surge happening around the helmet area of the shadow on the lunar surface. The shadow is of course Buzz Aldrin, and Neil Armstrong is in the white spacesuit on the right side.
A few clicks more and one can see that this image has been cropped and zoomed from the Buzz Aldrin's visor in a much larger image, shown below.
My question is about the connection of this photograph to the phenomena of opposition surge, coherent backscatter, or shadow-hiding. Is this just a randomly found example by an author of the Wikipedia article, or was the "discovery" of opposition surge in this already-famous-for-another-reason-or-two photo actually a notable thing? Are there other examples of this effect in local, human-scale lunar photos? Was it ever photographed or measured on purpose in subsequent Apollo missions?