Bundle D and new frontend

New frontend-plate with rotating mask and xy-stage

A view from inside the adapter

Below, pictures of the new stop/baffle mounted on the inside of the adapter:
the middle photo is taken with the camera lens at the level of the top of the FIES pickoff mirror,
the right-most photo is taken with the camera lens at the center of the fiber-viewing beam to StanCam.

Twisting bundle in cathedral after ~2 building rotations

New coupling station outside the white box

Old top calib unit: ThAr housing tube and calibration fiber lid of tube