M' filter and filter cell parts. Cell, kapton rings and OD wrap, wave washers, and C-ring
M' filter placed in cell, awaiting wave washers and C-ring.
Completed M' filter cell
Completed LP117 (long pass beyond 1.17um) filter cell
Completed LP117, underside view. Note notch in cell flange for mating to alignment pin in filter wheel slot.
Pupil viewer camera fully assembled in camera block (on right hand side of block).