09 April 2004:
This is O-L6, the NaCl lens in the collimator. This was shipped directly
to Alan Schier after fabrication by Janos, so it was not until my visit to
his facility that I saw the final lens. Note that there is a small ding in
it made during fabrication that Janos buffed out. It should not pose a problem
as it is outside of the clear aperture.