Optical path of SST, from the 1 m lens, via the two alt-az mirrors, the field mirror on the bottom plate (inset A), the Schupmann corrector (inset B), the field lens and exit window (inset A), to the tip-tilt mirror, deformable mirror, and re-imaging lens on the optical table (inset C). The optical path continues in Fig. 2. Courtesy of Göran Scharmer.
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