LAMBDA DG-4 PLUS & DG-5 PLUS OPERATION MANUAL – REV. 3.05B (20131009)
11
appropriate FILTER HOLDER into the slot. The bottom of the neutral density FILTER
HOLDER is flat while the bottoms of the interference FILTER HOLDERS are grooved. For
this reason, these two types of FILTER HOLDERS are not interchangeable. Make certain
that the end nearest the filter cup goes in first.
Figure 2-7. Lambda DG-4 left side.