Fig. 1

a) Telescope structure outside the optical lab. b) Schematic overview of the optical path (not to scale): W1 entrance window, M1-3 telescope mirrors, L1 telescope lens with aperture, PSD position sensing detector, L2-3 field lenses, L4-7a,b,c achromatic lenses, M5 tip-tilt mirror, M7/M10 rotatable mirrors, M8-9a,b,c static mirrors, F1-3 focal planes, and P1-2 pupil planes.
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