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Fig. 2


Top: relative variation of spot width as a function of spot peak flux on CCD E2V-250 at two wavelengths, 550 nm (left panel) and 900 nm (right panel). Bottom left: MegaCam difference of second moments of stars to the average as a function of peak flux. Bottom right: same measurement on DECam CCD (S11). A small color correction is applied in both cases. One notes that in all cases the size increases linearly with the peak flux.

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

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