In alog 38044, I posted views inside HAM2 from currently available viewports:

• the first bullet shows that there is a good view of the baffle after IM1, HA1
• the second bullet shows that there is a good view of the input aperture to the Faraday Rotator (FR)
• the beam, as installed, was centered on both of these apertures
• using these apertures now, we can check the alignment of the reflected beam from IM1 and the input beam to the FR
• using these apertures, we can also align the input beam to the FR to be as close as possible to the ideal input beam in position and angle
• attached: diagram of where these apertures are in HAM2