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So, I'm to understand that the Foucault mask test isn't something
that can be captured in still images, but possibly a video display of the
test results. I have observed many,many different images of the KE, and
Ronchi tests by a number of sources, and these are a valuable asset
for the beginner. I was just curious as to why there is so much
information about testing a mirrors zones and methods used, yet
there are no image sources available for comparison. I understand
now.
Thank you,
Arthur |