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Fig. 8

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Images of the segmented mirror surface. Upper left: without the spatial filter of Fig. 7 put in place. Upper right: with the spatial filter but with the same voltage (135 V) applied to all actuators, so that they are at about half stroke. Bottom: applying the flattenning procedure (see text). Note that the contrast has been artificially enhanced in each case.

This figure is made of several images, please see below:

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