Fig. 6
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Top: example PSF frames of the four UTs (from left to right: 4, ..., 1) from the acquisition camera at moderate wind speed, saturated at 40 000 ADU. Center: PSF fits to the data. Bottom: retrieved tip-tilt-subtracted wavefronts from the PSF fits. The wavefront errors are measured using the standard deviation. The associated movie is available online.
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