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Fig. 4.


Left: new instrument layout at GREGOR. GRIS (yellow) with the SJ system (green box above GRIS) are the only optics that remain in the same place, but all original instrument combinations remain. The AO is now horizontal and the new KIS FPI is drawn toward the window. The empty tables are for temporary visitor setups and for GFPI/HIFI. Right: photo of the setup as installed in March 2020. The red line traces the beam.

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