On Apr 23, 7:13*am, "Chris.B" wrote:
On Apr 23, 12:52*am, Brad Guth wrote:



Yes, it's a medium wide angle lens, but that little sphere item is not
Earth, or any likely lens refraction. *The AOV is 50 degrees by 66
degrees diagonal.

Perhaps it's another wayward weather balloon.

What about the blocking in the dark sky? Any (non-paranoid)
thoughts? :-)
Some of their color film frames include a few stars that they can't
seem to identify for us. Go figure, they could never manage to
include Venus or any other planet except an unusually pastel Earth.

Some of that dark sky indicated an having an ionized atmosphere of
some kind. PhotoShop helps to bring that out.


Blob identification aside.. the vacuum of the Moon must have required
rather special optics. The normal prescription assumes atmospheric air
on each side of all the exposed surfaces. The refractive index of air
is not that of a vacuum. This would probably require a complete
reworking of the lens prescription and probably unique, one-off
elements and perhaps lens housings too if the thickness of the
elements was much changed. A costly process. I have just found a page
on Wikipedia on the work involving Zeiss and Hasselblad for the lunar
cameras.

They had no extra-special lens coatings or much less any bandpass or
spectrum cutoff filtration, and their Kodak film wasn't even anything
special. Kodak and Hasselblad will not dare authenticate any of those
images for us, perhaps because it's not possible without those
flawless originals.

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