9
19-) Choose VPH-
blue from the “Filter and Grism” option but DO NOT start exposure
sequence yet.
20-) We go back to the big screen on the left side and from the Main Controller panel
we
click
“Flat”
21-
) Under Main Controller panel, on the right side of the screen, from “Instrument
Select”,
we
choose
“Flat&Comparison”
and
click
“Change”.
22-
) Under Instrument Select, from the “Lamp Control”, Click “Flat-lamp” & “ON”