I'm making a separate entry to go along with this thread of photos...

Putting the camera and 'bathroom' mirror on any table pretty significantly changes the leveling of any table.  The mirror especially is very heavy, although the camera is not feather light.  We need to come up with a new plan for taking alignment-confirming photos without adding anything to the tables.  That, or we have to level the table between each camera shot.  Anyone who has ever leveled one of our in-vac tables should shudder in horror at idea #2, so we need to put some thought into idea #1 before our next vent.  Vent Czar - can you put this on the list, in addition to the REFL rearrangement stuff?

As a result of this, PZT2 needed to be reverted to the place it was before work began on Saturday (so that the beam goes through the 45 degree target without any extra stuff on the table).  This means, unfortunately, that all of the photos / still captures of optics after PZT2 are invalid.