3) Click the “Expose” button in the “Control” panel on the right of the QUARTZ window and enter the exposure time. Counts should be as high as possible (<50000) without saturating. Depending on prism setting, it may be necessary to use a different ND filter.
94) After readout, check the counts in the image and the information box on the bottom left – if saturated pixels are reported, reduce the exposure time.
105) If satisfied, save to disk. Expose and save 3 fibre flats.
116) On QUARTZ, click to switch OFF “Lamp”. At the telescope, rotate the silver knob on the GIRAFFE head to the OUT position.
